JP4771679B2 - Pack battery - Google Patents

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JP4771679B2
JP4771679B2 JP2004285562A JP2004285562A JP4771679B2 JP 4771679 B2 JP4771679 B2 JP 4771679B2 JP 2004285562 A JP2004285562 A JP 2004285562A JP 2004285562 A JP2004285562 A JP 2004285562A JP 4771679 B2 JP4771679 B2 JP 4771679B2
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case
battery
holding cylinder
electrode
lead plate
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JP2006100148A (en
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秀世 森田
尚 苗村
雅也 中野
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Sanyo Electric Co Ltd
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Sanyo Electric Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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Description

本発明は、複数の電池を直列や並列に接続しているパック電池に関する。   The present invention relates to a battery pack in which a plurality of batteries are connected in series or in parallel.

電動工具や自転車の電源に使用されるパック電池は、多数の電池を並列と直列に接続して、充電容量と出力電圧を大きくしている。この種の電池は、電池の電極にリード板をスポット溶接してケースに収納している。電池はケース内の定位置に配置する必要がある。とくに、振動の激しい電動工具や自転車に使用されるパック電池は、電池を定位置にしっかりと内蔵させる必要がある。このことを実現するために、ケースに電池の一部を挿入する保持筒を一体的に成形して設けたパック電池が開発されている（特許文献１参照）。
特開２００２−１５１０２７号公報 A battery pack used for a power source of a power tool or a bicycle has a large number of batteries connected in parallel and in series to increase the charging capacity and the output voltage. In this type of battery, a lead plate is spot-welded to a battery electrode and stored in a case. The battery must be placed in a fixed position in the case. In particular, a battery pack used for a vibrant electric tool or a bicycle needs to have the battery firmly incorporated in a fixed position. In order to realize this, a battery pack has been developed in which a holding cylinder into which a part of the battery is inserted is integrally formed in a case (see Patent Document 1).
JP 2002-151027 A

以上の公報に記載されるパック電池は、図１に示すように、ケース３２の内面に電池３１の一部を挿入する保持筒３６を一体的に成形して設けている。このパック電池は、電極にリード板３３を溶接して連結している電池３１を保持筒３６挿入して定位置に配置する。この構造のパック電池は、電池３１をケース３２内に収納するのに便利ではあるが、電池３１にリード板３３を溶接して連結するのに手間がかかる。とくに、リード板を電池の電極の決められた位置に正確に連結するためには、専用のジグを使用して電池とリード板を定位置に配置する必要がある。このため、電池とリード板を特定の位置に位置がずれないようにセットして溶接する必要があり、リード板の正確な位置への連結にも手間がかかる。さらにまた、リード板で連結した複数の電池を一緒にしてケースに収納するので、電池をケースに入れるのにも手間がかかる欠点があった。   In the battery pack described in the above publication, as shown in FIG. 1, a holding cylinder 36 into which a part of the battery 31 is inserted is integrally formed on the inner surface of a case 32. In this battery pack, a battery 31 having a lead plate 33 welded to an electrode is inserted into a holding cylinder 36 and placed at a fixed position. The battery pack having this structure is convenient for housing the battery 31 in the case 32, but it takes time to weld and connect the lead plate 33 to the battery 31. In particular, in order to accurately connect the lead plate to a predetermined position of the battery electrode, it is necessary to place the battery and the lead plate at fixed positions using a dedicated jig. For this reason, it is necessary to set and weld the battery and the lead plate at a specific position so as not to be displaced, and it takes time to connect the lead plate to an accurate position. Furthermore, since a plurality of batteries connected by a lead plate are stored together in a case, there is a drawback that it takes time and effort to put the batteries into the case.

本発明は、このような欠点を解決することを目的に開発されたものである。本発明の重要な目的は、電池をケースの定位置に簡単に挿入でき、さらに、ケースに入れた電池には簡単かつ容易に、しかも位置ずれしないように正確な位置にリード板を接続して、能率よく安価に組み立てできるパック電池を提供することにある。   The present invention has been developed for the purpose of solving such drawbacks. An important object of the present invention is that the battery can be easily inserted into a fixed position of the case, and the lead plate is connected to the battery in the case simply and easily at an accurate position so as not to be displaced. It is to provide a battery pack that can be assembled efficiently and inexpensively.

本発明のパック電池は、一方の端部を凸部電極１ａとして他の端部を平面電極１ｂとする複数の電池１を、端面を同一の面に位置させる平行な姿勢でケース２に並べて収納しており、ケース２に収納している互いに隣接した電池１の凸部電極１ａと平面電極１ｂにはリード板３を接続して、リード板３で複数の電池１を連結している。ケース２は、プラスチックを成形して製作されたもので、内部に収納している電池１を挿入して定位置に配置する複数の保持筒６を互いに隣接して設けている。さらに、ケース２は、保持筒６の両端に、凸部電極１ａと平面電極１ｂを外部に表出させる開口部８を設けている。さらにまた、ケース２は、保持筒６の開口部８の周縁に沿って、電池１の平面電極１ｂの突出位置を特定すると共に、リード板３を定位置に配置するストッパリブ９を一体的に成形して設けている。ケース２は、このストッパリブ９に平面電極１ｂを当接させて、電池１の平面電極１ｂ側の突出位置を特定し、保持筒６の開口部８の周縁又はストッパリブ９で電池１の凸部電極１ａ側の突出位置を特定して、電池１の凸部電極１ａと平面電極１ｂを同一面に配置している。リード板３は、ストッパリブ９の内側に配置される外形である。パック電池は、リード板３をストッパリブ９の内側に位置させてケース２の定位置に配置しており、このリード板３を電池１の凸部電極１ａと平面電極１ｂに接続している。
The battery pack of the present invention accommodates a plurality of batteries 1 having one end portion as a convex electrode 1a and the other end portion as a planar electrode 1b in a case 2 in a parallel posture with their end surfaces positioned on the same surface. A lead plate 3 is connected to the convex electrode 1 a and the planar electrode 1 b of the batteries 1 that are housed in the case 2 and adjacent to each other , and the plurality of batteries 1 are connected by the lead plate 3. The case 2 is manufactured by molding plastic, and is provided with a plurality of holding cylinders 6 adjacent to each other, in which the battery 1 housed therein is inserted and placed in a fixed position. Further, the case 2 is provided with openings 8 at both ends of the holding cylinder 6 for exposing the convex electrode 1a and the planar electrode 1b to the outside. Further, the case 2 specifies the protruding position of the planar electrode 1b of the battery 1 along the peripheral edge of the opening 8 of the holding cylinder 6, and integrally forms a stopper rib 9 for arranging the lead plate 3 at a fixed position. Provided. In the case 2, the flat electrode 1b is brought into contact with the stopper rib 9 to specify the protruding position of the battery 1 on the flat electrode 1b side. The protruding position on the 1a side is specified, and the convex electrode 1a and the planar electrode 1b of the battery 1 are arranged on the same plane. The lead plate 3 has an outer shape disposed inside the stopper rib 9. In the battery pack, the lead plate 3 is positioned inside the stopper rib 9 and arranged at a fixed position of the case 2, and the lead plate 3 is connected to the convex electrode 1 a and the planar electrode 1 b of the battery 1.

本発明のパック電池は、ストッパリブ９を凸部電極1aと平面電極1bとが互いに隣接して配置された電池１間に配設することができる。
In the battery pack of the present invention, the stopper rib 9 can be disposed between the batteries 1 in which the convex electrode 1a and the planar electrode 1b are disposed adjacent to each other .

本発明のパック電池は、ケース２が、電池１の片方を挿入する第１のケース２Ａと、電池１の他方を挿入する第２のケース２Ｂを備えることができる。このパック電池は、第１のケース２Ａと第２のケース２Ｂをプラスチック製として、電池１の一部を挿入して定位置に配置する保持筒６の一部を一体的に成形して設けて、第１のケース２Ａと第２のケース２Ｂを連結して、保持筒６の内部に電池１を収納することができる。   In the battery pack of the present invention, the case 2 can include a first case 2A into which one of the batteries 1 is inserted and a second case 2B into which the other of the batteries 1 is inserted. In this battery pack, the first case 2A and the second case 2B are made of plastic, and a part of the holding cylinder 6 that is inserted into a part of the battery 1 and placed in a fixed position is integrally formed. The battery 1 can be housed inside the holding cylinder 6 by connecting the first case 2A and the second case 2B.

本発明のパック電池は、第１のケース２Ａと第２のケース２Ｂの連結部であって、電位差のある電池１を収納する保持筒６の境界に沿って、一方のケース２の保持筒連結縁１３に連結溝１４を、他方のケース２の保持筒連結縁１３には連結溝１４に案内される連結凸条１５を設けることができる。このパック電池は、連結溝１４に連結凸条１５を入れて、第１のケース２Ａと第２のケース２Ｂを連結することができる。   The battery pack of the present invention is a connecting portion between the first case 2A and the second case 2B, and is connected to the holding cylinder of one case 2 along the boundary of the holding cylinder 6 that houses the battery 1 having a potential difference. A connecting groove 14 can be provided on the edge 13, and a connecting protrusion 15 guided by the connecting groove 14 can be provided on the holding cylinder connecting edge 13 of the other case 2. This battery pack can connect the first case 2 </ b> A and the second case 2 </ b> B by inserting a connecting protrusion 15 into the connecting groove 14.

本発明のパック電池は、複数の電池１を２段に積層して配置すると共に、上段に積層する電池１を下段の電池１の谷間に配設することができる。   In the battery pack of the present invention, a plurality of batteries 1 can be stacked in two stages, and the battery 1 stacked in the upper stage can be disposed in the valley of the lower battery 1.

本発明のパック電池は、多段に積層して配置している電池１の上面に回路基板４を配設して、この回路基板４にリード板３を接続することができる。   In the battery pack of the present invention, the circuit board 4 is disposed on the upper surface of the battery 1 that is stacked in multiple stages, and the lead plate 3 can be connected to the circuit board 4.

本発明のパック電池は、ケース２が保持筒６に貫通孔１６を設けると共に、この貫通孔１６に位置するように保持筒６の表面に粘着テープを接着して、粘着テープを保持筒６の表面と電池１の表面に接着することができる。   In the battery pack of the present invention, the case 2 is provided with a through hole 16 in the holding cylinder 6, and an adhesive tape is adhered to the surface of the holding cylinder 6 so as to be positioned in the through hole 16. It can be adhered to the surface and the surface of the battery 1.

本発明のパック電池は、電池をケースの定位置に簡単に挿入でき、さらに、ケースに入れた電池に簡単かつ容易に、しかも位置ずれしないように正確な位置にリード板を接続できる特長がある。それは、本発明のパック電池が、複数の保持筒を互いに隣接して設けて電池を収納するケースとすると共に、ケースの保持筒の開口部の周縁に沿ってストッパリブを一体的に成形して設けており、このストッパリブに電池の電極を当接させて電池電極の突出位置を特定すると共に、リード板をストッパリブの内側に位置させてケースの定位置に配置しているからである。この構造のパック電池は、ケースの保持筒に挿入する電池の電極を開口部周縁のストッパリブに当接させて位置決めするので、電池電極を開口部から表出させる状態としながら、極めて簡単に電池をケースの定位置に配置できる。さらに、パック電池は、リード板をストッパリブの内側に配置できる外形として、リード板をストッパリブの内側に位置決めしながらケースの定位置に配置するので、ケースの定位置に配置された電池に、簡単かつ容易に、しかも正確な位置にリード板を接続できる。   The battery pack of the present invention has a feature that the battery can be easily inserted into a fixed position of the case, and further, the lead plate can be connected to the battery placed in the case easily and easily at an accurate position so as not to be displaced. . The battery pack of the present invention is provided with a case in which a plurality of holding cylinders are provided adjacent to each other to store the battery, and a stopper rib is integrally formed along the periphery of the opening of the holding cylinder of the case. This is because the battery electrode is brought into contact with the stopper rib to specify the protruding position of the battery electrode, and the lead plate is positioned inside the stopper rib and arranged at a fixed position of the case. The battery pack of this structure is positioned by bringing the battery electrode to be inserted into the holding cylinder of the case into contact with the stopper rib at the periphery of the opening, so that the battery electrode can be exposed from the opening very easily. Can be placed in a fixed position on the case. In addition, the battery pack has an outer shape that allows the lead plate to be placed inside the stopper rib, and the lead plate is placed at the fixed position of the case while positioning the lead plate inside the stopper rib. The lead plate can be easily and accurately connected.

また、本発明のパック電池は、従来のように、別工程で電池の正確な位置にリード板を接続した後、リード板を接続した電池をケースの定位置に収納するのではなく、電池とリード板とをケースの定位置に配置した状態でリード板を電池に接続できるので、能率よく安価に組み立てできる特長がある。   In addition, the battery pack of the present invention does not store the battery connected to the lead plate in a fixed position of the case after connecting the lead plate to the exact position of the battery in a separate process as in the prior art. Since the lead plate can be connected to the battery with the lead plate placed at a fixed position on the case, there is a feature that it can be assembled efficiently and inexpensively.

さらに、本発明の請求項２のパック電池は、ストッパリブを電位差のある電池間に配設するので、このストッパリブを電位差のあるリード板間の絶縁材に併用して、電位差のあるリード板同士が互いに接触してショートするのを有効に防止できる特長がある。   Furthermore, in the battery pack according to claim 2 of the present invention, since the stopper rib is disposed between the batteries having a potential difference, the stopper rib is used together with an insulating material between the lead plates having a potential difference so that the lead plates having a potential difference can be connected to each other. There is a feature that can effectively prevent short-circuiting due to contact with each other.

さらに、本発明の請求項３のパック電池は、ケースを、電池の片方を挿入する第１のケースと、電池の他方を挿入する第２のケースで構成し、第１のケースと第２のケースを連結して保持筒の内部に電池を収納するので、電池の両端の電極を開口部周縁のストッパリブで位置決めしながらケースの定位置に配置できる特長がある。さらに、このパック電池は、第１のケースと第２のケースを連結する状態で、収納される電池の両端にストッパリブを当接できるので、電池がケースの開口部から抜け出るのを防止しながら定位置に収納できる。   Furthermore, in the battery pack of claim 3 of the present invention, the case includes a first case into which one of the batteries is inserted and a second case into which the other battery is inserted, and the first case and the second case. Since the battery is housed in the holding cylinder by connecting the case, there is an advantage that the electrodes at both ends of the battery can be arranged at a fixed position of the case while positioning with the stopper ribs at the periphery of the opening. Further, since the battery pack can be fitted with stopper ribs at both ends of the battery to be stored in a state where the first case and the second case are connected, it is possible to prevent the battery from coming out of the opening of the case. Can be stored in position.

さらに、本発明の請求項４のパック電池は、第１のケースと第２のケースの連結部であって、電位差のある電池を収納する保持筒の境界に沿って、一方のケースの保持筒連結縁に連結溝を、他方のケースの保持筒連結縁に連結凸条を設けているので、ケース内に水が浸入したり電池から電解液が漏れたりしても、連結溝と連結凸条とで電位差のある電池間を隔離して、マイグレーションの発生を効果的に極減できる特長がある。また、連結溝と連結凸条を介して第１のケースと第２のケースを連結するので、第１のケースと第２のケースとを正確に位置決めしながら連結できる特長もある。   Furthermore, the battery pack according to claim 4 of the present invention is a connecting portion between the first case and the second case, and is a holding cylinder of one case along the boundary of the holding cylinder that stores the battery having a potential difference. Since the connection groove is provided on the connection edge and the connection protrusion is provided on the holding cylinder connection edge of the other case, even if water enters the case or the electrolyte leaks from the battery, the connection groove and the connection protrusion Therefore, it is possible to isolate the batteries having a potential difference and effectively reduce the occurrence of migration. In addition, since the first case and the second case are connected via the connecting groove and the connecting protrusion, there is an advantage that the first case and the second case can be connected while accurately positioned.

本発明の請求項５のパック電池は、複数の電池を２段に積層すると共に、上段に積層する電池を下段の電池の谷間に配設するので、多数の電池を省スペースに効率よく配置できる特長がある。   In the battery pack according to claim 5 of the present invention, a plurality of batteries are stacked in two stages, and the batteries stacked in the upper stage are arranged in the valleys of the lower battery, so that a large number of batteries can be efficiently arranged in a space-saving manner. There are features.

本発明の請求項７のパック電池は、ケースの保持筒に貫通孔を設けると共に、この貫通孔に位置して保持筒の表面に粘着テープを接着して、粘着テープを保持筒の表面と電池の表面とに接着するので、保持筒に収納された電池が動くのを有効に防止できる特長がある。   The battery pack according to claim 7 of the present invention is provided with a through hole in the holding cylinder of the case, and an adhesive tape is bonded to the surface of the holding cylinder located in the through hole, and the adhesive tape is attached to the surface of the holding cylinder and the battery. Since it adheres to the surface of the battery, there is a feature that the battery stored in the holding cylinder can be effectively prevented from moving.

以下、本発明の実施例を図面に基づいて説明する。ただし、以下に示す実施例は、本発明の技術思想を具体化するためのパック電池を例示するものであって、本発明はパック電池を以下のものに特定しない。   Embodiments of the present invention will be described below with reference to the drawings. However, the example shown below illustrates the battery pack for embodying the technical idea of the present invention, and the present invention does not specify the battery pack as follows.

さらに、この明細書は、特許請求の範囲を理解しやすいように、実施例に示される部材に対応する番号を、「特許請求の範囲」および「課題を解決するための手段の欄」に示される部材に付記している。ただ、特許請求の範囲に示される部材を、実施例の部材に特定するものでは決してない。   Further, in this specification, in order to facilitate understanding of the scope of claims, numbers corresponding to the members shown in the examples are indicated in the “claims” and “means for solving problems” sections. It is added to the members. However, the members shown in the claims are not limited to the members in the embodiments.

図２ないし図１０に示すパック電池は、充電できる複数の電池１と、この電池１を収納しているプラスチック製のケース２と、ケース２に収納している電池１を並列と直列に接続しているリード板３と、リード板３を接続して各々の電池電圧を検出しながら電池１の充放電をコントロールする回路を実装する回路基板４と、この回路基板４を入れている基板ホルダ５とを備える。パック電池は、図１に示す電池組立１０をさらに外ケース（図示せず）に入れて完成される。   The battery pack shown in FIGS. 2 to 10 includes a plurality of rechargeable batteries 1, a plastic case 2 housing the batteries 1, and a battery 1 housed in the case 2 connected in parallel and in series. A lead board 3, a circuit board 4 on which a circuit for controlling charging / discharging of the battery 1 is detected while connecting the lead board 3 to detect each battery voltage, and a substrate holder 5 in which the circuit board 4 is placed. With. The battery pack is completed by further inserting the battery assembly 10 shown in FIG. 1 into an outer case (not shown).

電池１は、一方の端部を凸部電極１ａとして他の端部を平面電極１ｂとする円筒型電池である。図のパック電池は、複数の電池１を円筒型のリチウムイオン二次電池とする。ただし本発明のパック電池は、電池を充電できる全ての二次電池、たとえばニッケル水素電池やニッケルカドミウム電池とすることもできる。また、電池は、円筒型電池に代わって角型電池も使用できる。   The battery 1 is a cylindrical battery having one end as a convex electrode 1a and the other end as a planar electrode 1b. In the illustrated battery pack, a plurality of batteries 1 are cylindrical lithium ion secondary batteries. However, the battery pack of the present invention may be any secondary battery that can charge the battery, for example, a nickel metal hydride battery or a nickel cadmium battery. Further, as the battery, a square battery can be used instead of the cylindrical battery.

図のパック電池は、上下に配置される電池１の向きを等しくして、上下に隣接する電池端部の極性を同じ極性とし、左右に配置される電池１の向きを逆向きとして、左右に隣接する電池端部の極性を異なる極性としている。すなわち、パック電池は、上下に隣接する電池端部では、凸部電極１ａ同士、あるいは平面電極１ｂ同士が位置すると共に、左右に隣接する電池端部には、凸部電極１ａと平面電極１ｂとが交互に位置するように配列している。   In the illustrated battery pack, the orientations of the batteries 1 arranged vertically are equal, the polarities of the battery ends adjacent to the top and bottom are the same, and the orientations of the batteries 1 arranged on the left and right are reversed. The polarity of the adjacent battery end is different. That is, in the battery pack, the protruding electrodes 1a or the planar electrodes 1b are positioned at the battery ends adjacent vertically, and the protruding electrode 1a and the planar electrode 1b are positioned at the battery ends adjacent to the left and right. Are arranged alternately.

図のパック電池は、１０個の電池１をリード板３で直列に接続して、直列に接続している１０個の電池１を上下２段に配置して、上下の電池１を互いに並列に接続している。上下に各々１０個の電池１を平面状に並べて、全体で２０個の電池１を、１０個直列、２個並列に接続している。ただ、本発明のパック電池は電池の個数を２０個に特定しない。電池は、２０個以下とすることも、また２０個以上とすることもできる。また、電池を１段に配置し、あるいは３段以上に配置することもできる。さらにまた、１段に配置する電池の個数を１０以下または１０以上とすることもできる。   In the illustrated battery pack, 10 batteries 1 are connected in series with a lead plate 3, the 10 batteries 1 connected in series are arranged in two upper and lower stages, and the upper and lower batteries 1 are arranged in parallel with each other. Connected. Ten batteries 1 are arranged in a plane on the top and bottom, and a total of 20 batteries 1 are connected in series and two in parallel. However, the battery pack of the present invention does not specify the number of batteries as 20. The number of batteries may be 20 or less, or 20 or more. Further, the batteries can be arranged in one stage or in three or more stages. Furthermore, the number of batteries arranged in one stage can be 10 or less or 10 or more.

ケース２は、各々の電池１を独立して収納する複数の保持筒６をプラスチックで一体的に成形して設けている。保持筒６は、内部に電池１を挿入して定位置に配置する。複数の保持筒６は互いに隣接して平行に設けられて、ここに収納する全ての電池１を、端面が同一の面に位置するように、互いに平行な姿勢として収納する。保持筒６は、内形を電池１の外形にほぼ等しく、正確には外形よりもわずかに大きくしている。この保持筒６は、内部に電池１を挿通して定位置に配置する。図のパック電池は、円筒型電池を保持筒６に収納するので、保持筒６を円筒状としている。   The case 2 is provided with a plurality of holding cylinders 6 for individually storing the batteries 1 which are integrally formed of plastic. The holding cylinder 6 is placed in a fixed position with the battery 1 inserted therein. The plurality of holding cylinders 6 are provided adjacent to each other in parallel, and all the batteries 1 housed therein are housed in parallel postures so that the end surfaces are located on the same surface. The holding cylinder 6 has an inner shape that is substantially equal to the outer shape of the battery 1, and is precisely slightly larger than the outer shape. The holding cylinder 6 is placed in a fixed position with the battery 1 inserted therein. In the illustrated battery pack, the cylindrical battery is accommodated in the holding cylinder 6, so that the holding cylinder 6 is cylindrical.

図のケース２の保持筒６は、隣接する電池１の境界に、電池間を区画して絶縁する境界壁７を設けている。この形状のケース２は、隣の電池１を境界壁７で絶縁するので、金属板からなる外装缶の表面をプラスチックフィルム等の絶縁材で被覆しない電池を保持筒６に入れて、外装缶を保持筒６で絶縁してケース２に収納できる。保持筒は、必ずしも電池の間を区画して絶縁する境界壁を設ける必要はない。境界壁のないケースは、外装缶の表面を絶縁材で被覆した電池を保持筒に収納する。   The holding cylinder 6 of the case 2 in the figure is provided with a boundary wall 7 that partitions and insulates the batteries at the boundary between adjacent batteries 1. In the case 2 of this shape, the adjacent battery 1 is insulated by the boundary wall 7, so a battery that does not cover the surface of the outer can made of a metal plate with an insulating material such as a plastic film is put in the holding cylinder 6, and the outer can is It can be insulated in the holding cylinder 6 and stored in the case 2. The holding cylinder is not necessarily provided with a boundary wall that partitions and insulates the batteries. In a case without a boundary wall, a battery whose outer can is covered with an insulating material is stored in a holding cylinder.

ケース２は、保持筒６の両端に、凸部電極１ａと平面電極１ｂを外部に表出させる開口部８を設けている。電池１を保持筒６に収納して、凸部電極１ａと平面電極１ｂを外部に表出させてリード板３を連結するためである。図のケース２は、保持筒６の開口部８の周縁に沿ってストッパリブ９を一体的に成形して設けている。ストッパリブ９は、電池１の凸部電極１ａと平面電極１ｂを開口部８の定位置に配置する。ストッパリブ９は、保持筒６の厚さよりも幅広に成形されて、開口部８の内側に突出している。ストッパリブ９の内側に突出する部分は、電池１の端部に当たって、凸部電極１ａや平面電極１ｂの位置を特定する。電池１の平面電極１ｂ側は、平面電極１ｂをストッパリブ９の突出部に当接して、保持筒６の定位置に配置される。凸部電極１ａ側は、電池端部の外周をストッパリブ９の突出部に当接させて、凸部電極１ａを保持筒６の定位置に配置する。このストッパリブ９は、平面電極１ｂと凸部電極１ａの両方をケース２の定位置に配置する。ただし、本発明のパック電池は、電池１の凸部電極１ａ側の突出位置を必ずしもストッパリブ９で特定する必要はない。たとえば、保持筒の開口部周縁に、凸部電極を貫通させる貫通孔を設けた蓋部（図示せず）を一体的に成形して設け、この蓋部を電池の端面であって、凸部電極の外側面を当接させて、電池の凸部電極の位置を特定することができるからである。また、電池の凸部電極側は、保持筒の内面に突出部（図示せず）を設け、この突出部で凸部電極側の外周縁を係止して、凸部電極をケースの定位置に配置することもできる。   The case 2 is provided with openings 8 at both ends of the holding cylinder 6 for exposing the convex electrode 1a and the planar electrode 1b to the outside. This is because the battery 1 is accommodated in the holding cylinder 6 so that the convex electrode 1a and the planar electrode 1b are exposed to the outside and the lead plate 3 is connected. In the case 2 shown in the figure, a stopper rib 9 is integrally formed along the periphery of the opening 8 of the holding cylinder 6. The stopper rib 9 arranges the convex electrode 1 a and the planar electrode 1 b of the battery 1 at a fixed position of the opening 8. The stopper rib 9 is formed wider than the thickness of the holding cylinder 6 and protrudes inside the opening 8. The portion protruding inside the stopper rib 9 hits the end of the battery 1 and specifies the position of the convex electrode 1a and the planar electrode 1b. The flat electrode 1 b side of the battery 1 is disposed at a fixed position of the holding cylinder 6 with the flat electrode 1 b in contact with the protruding portion of the stopper rib 9. On the convex electrode 1 a side, the outer periphery of the battery end is brought into contact with the protruding portion of the stopper rib 9, and the convex electrode 1 a is disposed at a fixed position of the holding cylinder 6. This stopper rib 9 arranges both the planar electrode 1 b and the convex electrode 1 a at a fixed position of the case 2. However, in the battery pack of the present invention, the protruding position of the battery 1 on the convex electrode 1a side is not necessarily specified by the stopper rib 9. For example, a lid portion (not shown) provided with a through-hole through which the convex electrode penetrates is integrally formed on the periphery of the opening portion of the holding cylinder, and this lid portion is an end face of the battery, and the convex portion This is because the position of the convex electrode of the battery can be specified by contacting the outer surface of the electrode. Also, on the convex electrode side of the battery, a protrusion (not shown) is provided on the inner surface of the holding cylinder, and the protrusion is engaged with the outer peripheral edge on the convex electrode side so that the convex electrode is positioned at the fixed position of the case. It can also be arranged.

凸部電極１ａと平面電極１ｂ、正確には凸部電極１ａの頂上面と平面電極１ｂは、同一面に配置されて、平面状のリード板３に接続される。パック電池は、ストッパリブ９に平面電極１ｂを当接させて、電池１の平面電極１ｂ側の突出位置を特定し、電池１の凸部電極１ａ側の突出位置は、ストッパリブ９や保持筒の開口部に設けた蓋部や突出部で特定して、凸部電極１ａと平面電極１ｂを同一面に配置する。同一面に位置する凸部電極１ａと平面電極１ｂは、リード板３をスポット溶接やレーザー溶接等の方法で、溶接して接続する。   The convex electrode 1a and the planar electrode 1b, more precisely, the top surface of the convex electrode 1a and the planar electrode 1b are arranged on the same plane and connected to the planar lead plate 3. In the battery pack, the flat electrode 1b is brought into contact with the stopper rib 9 to specify the protruding position of the battery 1 on the flat electrode 1b side. The protruding position of the battery 1 on the convex electrode 1a side is the opening of the stopper rib 9 or the holding cylinder. The convex electrode 1a and the planar electrode 1b are arranged on the same surface, specified by the lid portion or the protruding portion provided in the portion. The convex electrode 1a and the planar electrode 1b located on the same plane are connected by welding the lead plate 3 by a method such as spot welding or laser welding.

ストッパリブ９は、電池１の突出位置を特定すると共に、リード板３を定位置に配置する。このため、ストッパリブ９は、隣接して配置されるリード板３の境界に位置し、かつ、リード板３の外周に沿う形状としている。いいかえると、リード板３はストッパリブ９の内側に沿う形状としている。ストッパリブ９は、電位差のある電池１の境界に沿って設けられる。図のケース２は、上段の電池１の境界から下段の電池１の境界まで伸び、さらに下段の電池１の境界からは両側の電池１の下縁に分岐して伸びる形状のストッパリブ９を設けている。   The stopper rib 9 specifies the protruding position of the battery 1 and arranges the lead plate 3 at a fixed position. For this reason, the stopper rib 9 is located at the boundary between the adjacent lead plates 3 and has a shape along the outer periphery of the lead plate 3. In other words, the lead plate 3 has a shape along the inside of the stopper rib 9. The stopper rib 9 is provided along the boundary of the battery 1 having a potential difference. Case 2 in the figure is provided with stopper ribs 9 extending from the boundary of the upper battery 1 to the boundary of the lower battery 1 and further extending from the boundary of the lower battery 1 to the lower edges of the batteries 1 on both sides. Yes.

図７と図８に示すケース２は、中央でふたつに分割されて、電池１の片方の挿入する第１のケース２Ａと、電池１の他方を挿入する第２のケース２Ｂを備える。第１のケース２Ａと第２のケース２Ｂはプラスチック製で、電池１の一部を挿入して定位置に配置する保持筒６の一部を一体的に成形して設けている。第１のケース２Ａと第２のケース２Ｂが連結されて、保持筒６の内部に電池１が収納される。第１のケース２Ａと第２のケース２Ｂは、開口部８にストッパリブ９を設けて、電池１が開口部８から出ないように保持筒６の内部に収納している。   7 and 8 includes a first case 2A into which one of the batteries 1 is inserted and a second case 2B into which the other of the batteries 1 is inserted. The first case 2A and the second case 2B are made of plastic, and a part of the holding cylinder 6 into which a part of the battery 1 is inserted and disposed at a fixed position is integrally formed. The first case 2 </ b> A and the second case 2 </ b> B are connected, and the battery 1 is stored inside the holding cylinder 6. The first case 2 </ b> A and the second case 2 </ b> B are provided with stopper ribs 9 in the opening 8 and are housed inside the holding cylinder 6 so that the battery 1 does not come out of the opening 8.

第１のケース２Ａと第２のケース２Ｂは、互いに連結する保持筒６の開口端縁を同じ形状としている。図７と図８に示すケース２は、第１のケース２Ａと第２のケース２Ｂを連結するために、第１のケース２Ａに連結フック１１を一体的に成形して設けており、第２のケース２Ｂには、連結フック１１を連結する連結部１２を設けている。連結フック１１は、保持筒６の開口端縁から第２のケース２Ｂの表面に突出している。連結部１２は、連結フック１１を抜けないように連結する連結穴である。図に示す第２のケース２Ｂは、保持筒６の谷間にロッドを連結して、連結穴の連結部１２を設けている。このケース２は、第１のケース２Ａの連結フック１１を第２のケース２Ｂの連結部１２である穴に入れて、互いに連結される。連結フック１１と連結穴は、第１のケース２Ａと第２のケース２Ｂを複数のカ所で連結するために、複数設けている。図のケース２は、両端の２カ所と、上面と下面の各々２カ所ずつに連結フック１１と連結部１２を設けている。このケース２は、連結フック１１を連結部１２に入れて簡単に連結できる。   In the first case 2A and the second case 2B, the opening edges of the holding cylinders 6 connected to each other have the same shape. The case 2 shown in FIG. 7 and FIG. 8 is provided with a connecting hook 11 integrally formed with the first case 2A in order to connect the first case 2A and the second case 2B. The case 2 </ b> B is provided with a connecting portion 12 for connecting the connecting hook 11. The connecting hook 11 protrudes from the opening edge of the holding cylinder 6 to the surface of the second case 2B. The connecting portion 12 is a connecting hole that connects the connecting hook 11 so as not to come off. The second case 2 </ b> B shown in the drawing connects the rod between the valleys of the holding cylinder 6, and provides a connecting portion 12 for a connecting hole. The case 2 is connected to each other by inserting the connecting hook 11 of the first case 2A into the hole that is the connecting portion 12 of the second case 2B. A plurality of connection hooks 11 and connection holes are provided in order to connect the first case 2A and the second case 2B at a plurality of locations. In the case 2 shown in the figure, connecting hooks 11 and connecting portions 12 are provided at two positions on both ends, and two on each of the upper surface and the lower surface. The case 2 can be easily connected by inserting the connecting hook 11 into the connecting portion 12.

図のパック電池は、図において上下に配置している電池１を並列に接続して、横に配置する電池１を直列に接続している。したがって、上下に配置される電池１は同じ電位となるが、左右に配置される電池１は電位差がある。電位差のある電池１を有効に絶縁するために、電位差のある電池１を収納する保持筒６の境界に沿って、一方のケース２には、図１１に示すように保持筒連結縁１３に連結溝１４を、他方のケース２には、図１２に示すように、保持筒連結縁１３に連結溝１４に案内される連結凸条１５を設けている。このケース２は、連結溝１４に連結凸条１５を入れて、第１のケース２Ａと第２のケース２Ｂを連結する。この構造のケース２は、連結溝１４に連結凸条１５を入れる構造で、電位差のある電池１をより効果的に絶縁して隣の保持筒６に収納できる。   In the illustrated battery pack, the batteries 1 arranged in the vertical direction in the figure are connected in parallel, and the batteries 1 arranged horizontally are connected in series. Therefore, the batteries 1 arranged above and below have the same potential, but the batteries 1 arranged on the left and right have a potential difference. In order to effectively insulate the battery 1 having a potential difference, one case 2 is connected to a holding cylinder connecting edge 13 as shown in FIG. 11 along the boundary of the holding cylinder 6 that houses the battery 1 having a potential difference. As shown in FIG. 12, the groove 14 and the other case 2 are provided with connecting ridges 15 guided by the connecting grooves 14 on the holding cylinder connecting edge 13. In this case 2, the connecting ridge 15 is inserted into the connecting groove 14 to connect the first case 2 </ b> A and the second case 2 </ b> B. The case 2 having this structure has a structure in which the connecting protrusion 15 is inserted into the connecting groove 14, and the battery 1 having a potential difference can be more effectively insulated and stored in the adjacent holding cylinder 6.

さらに、図に示すケース２は、保持筒６に貫通孔１６を設けている。図のケース２は、第１のケース２Ａの各々の保持筒６に貫通孔１６を開口している。貫通孔１６に位置するように保持筒６の表面には粘着テープ（図示せず）を接着している。粘着テープは、保持筒６の表面に接着され、さらに貫通孔１６から保持筒６に収納している電池１の表面に接着されて、保持筒６の内部で電池１が回転するのを阻止できる。このパック電池は、電池１を保持筒６の内部に回転しないように収納するので、振動等の衝撃を受けるときに、電池１が回転してリード板３が破損し、あいるは外れることがない。このため、耐衝撃強度を向上できる。図のケース２は、第１のケース２Ａにのみ貫通孔１６を設けているが、第２のケースにも貫通孔を設けることができる。すなわち、ふたつのケース２を連結する構造にあっては、いずれか一方のケース２に貫通孔１６を設け、あるいは両方のケースに貫通孔を設けることができる。   Further, the case 2 shown in the figure has a through hole 16 in the holding cylinder 6. In the case 2 in the figure, a through hole 16 is opened in each holding cylinder 6 of the first case 2A. An adhesive tape (not shown) is bonded to the surface of the holding cylinder 6 so as to be positioned in the through hole 16. The adhesive tape is adhered to the surface of the holding cylinder 6 and further adhered to the surface of the battery 1 accommodated in the holding cylinder 6 through the through hole 16, thereby preventing the battery 1 from rotating inside the holding cylinder 6. . Since this battery pack stores the battery 1 so as not to rotate inside the holding cylinder 6, the battery 1 may be rotated and the lead plate 3 may be damaged due to an impact such as vibration, so that it may come off. Absent. For this reason, impact strength can be improved. In the case 2 in the figure, the through-hole 16 is provided only in the first case 2A, but the through-hole can also be provided in the second case. That is, in the structure in which the two cases 2 are connected, the through hole 16 can be provided in one of the cases 2, or the through hole can be provided in both cases.

リード板３は、ニッケル板、あるいは鉄の表面をニッケル等のメッキをした金属板である。リード板３は、ストッパリブ９でケース２の定位置に配置される。図のパック電池は、出力端子となるリード板３’以外は、４本の電池１に接続される。ひとつのリード板３には、ふたつの凸部電極１ａとふたつの平面電極１ｂが接続されて、２本の電池１を並列に接続し、並列に接続している２本の電池１を直列に接続する。リード板３は、ケース２に一体的に成形して設けているストッパリブ９の間に配置される外形としている。図のリード板３は、接続する電池１を収納している保持筒６の開口縁に沿う形状としている。図のパック電池は、１枚のリード板３で４本の電池１を接続するので、リード板３は、上下左右に位置する４つの保持筒６の開口部８に沿う形状としている。４本の保持筒６の境界にストッパリブ９を設けている。リード板３は、ストッパリブ９の内側に沿う形状であり、かつストッパリブ９のない部分は保持筒６の開口縁に沿う形状としている。   The lead plate 3 is a nickel plate or a metal plate having an iron surface plated with nickel or the like. The lead plate 3 is disposed at a fixed position of the case 2 by the stopper rib 9. The battery pack shown in the figure is connected to four batteries 1 except for the lead plate 3 'serving as an output terminal. Two lead electrodes 1a and two planar electrodes 1b are connected to one lead plate 3, two batteries 1 are connected in parallel, and two batteries 1 connected in parallel are connected in series. Connecting. The lead plate 3 has an outer shape disposed between stopper ribs 9 formed integrally with the case 2. The lead plate 3 in the figure has a shape along the opening edge of the holding cylinder 6 that houses the battery 1 to be connected. In the illustrated battery pack, four batteries 1 are connected by a single lead plate 3, so that the lead plate 3 has a shape along the openings 8 of the four holding cylinders 6 positioned in the vertical and horizontal directions. A stopper rib 9 is provided at the boundary between the four holding cylinders 6. The lead plate 3 has a shape along the inside of the stopper rib 9, and a portion without the stopper rib 9 has a shape along the opening edge of the holding cylinder 6.

リード板３は、凸部電極１ａと平面電極１ｂに溶接して接続する部分にＵ字スリット１７を設けている。さらに、Ｕ字スリット１７の内側に直線スリット１８を設けている。このリード板３は、直線スリット１８の両側を電池１の電極に確実にスポット溶接できる。直線スリット１８とＵ字スリット１７が、スポット溶接の無効電流を少なくするからである。   The lead plate 3 is provided with a U-shaped slit 17 in a portion to be welded and connected to the convex electrode 1a and the flat electrode 1b. Further, a linear slit 18 is provided inside the U-shaped slit 17. The lead plate 3 can reliably spot-weld both sides of the linear slit 18 to the electrode of the battery 1. This is because the straight slit 18 and the U-shaped slit 17 reduce the reactive current of spot welding.

さらに、図のリード板３は、回路基板４に接続する接続リード１９を回路基板４の方向に突出して設けている。この回路構成のパック電池は、リード板３の接続リード１９を回路基板４に接続して、回路基板４に実装する電圧検出回路で各々の電池電圧を検出しながら充放電をコントロールできる。電圧検出回路は、いずれかの電池電圧が最低電圧まで低下するとパック電池の放電電流を遮断する。また、いずれかの電池電圧が最高電圧まで上昇するとパック電池の充電電流を遮断する。このパック電池は、全ての電池１の過放電と過充電を防止しながら充放電できる。   Further, the lead plate 3 shown in the figure is provided with connection leads 19 connected to the circuit board 4 so as to protrude in the direction of the circuit board 4. In the battery pack having this circuit configuration, the connection lead 19 of the lead plate 3 is connected to the circuit board 4, and charging / discharging can be controlled while detecting each battery voltage by a voltage detection circuit mounted on the circuit board 4. The voltage detection circuit cuts off the discharge current of the battery pack when any of the battery voltages drops to the minimum voltage. Further, when any battery voltage rises to the maximum voltage, the charging current of the battery pack is cut off. This battery pack can be charged and discharged while preventing overdischarge and overcharge of all the batteries 1.

回路基板４は、リード板３を介して電池１に連結される。電池１はケース２の保持筒６に収納しているので、回路基板４はリード板３を介してケース２に連結される。図２と図３のパック電池は、回路基板４を基板ホルダ５に入れている。リード板３は、接続リード１９を基板ホルダ５に貫通させて、回路基板４に接続される。   The circuit board 4 is connected to the battery 1 via the lead plate 3. Since the battery 1 is housed in the holding cylinder 6 of the case 2, the circuit board 4 is connected to the case 2 via the lead plate 3. 2 and 3 has a circuit board 4 in a board holder 5. The lead plate 3 is connected to the circuit board 4 by causing the connection leads 19 to penetrate the board holder 5.

図５と図９において、ケース２の両端部に接続しているリード板３’は、２本の電池１に接続している。このリード板３’は、回路基板４を介して、あるいは回路基板４を介することなく、パック電池の出力端子（図示せず）に接続される。充放電を電圧検出回路でコントロールするパック電池は、出力端子と電池１との間にＦＥＴやトランジスター等の半導体スイッチング素子を接続し、このスイッチング素子を電圧検出回路でオンオフに制御して、充放電をコントロールする。   In FIG. 5 and FIG. 9, the lead plate 3 ′ connected to both ends of the case 2 is connected to the two batteries 1. The lead plate 3 ′ is connected to an output terminal (not shown) of the battery pack via the circuit board 4 or without the circuit board 4. A battery pack that controls charging / discharging with a voltage detection circuit connects a semiconductor switching element such as an FET or transistor between the output terminal and battery 1 and controls the switching element to be turned on / off by the voltage detection circuit. Control.

以上のパック電池は、以下のようにして組み立てられる。
(1) 第１のケース２Ａと第２のケース２Ｂの保持筒６に電池１を入れて、図６に示すように、第１のケース２Ａと第２のケース２Ｂを連結する。この状態で、電池１は保持筒６から出ないようにケース２に収納される。
(2) 第１のケース２Ａの貫通孔１６に粘着テープを巻き付けて、電池１をケース２に回転しないように連結する。
(3) ケース２の開口部８にリード板３を配置して、リード板３を保持筒６に入れている電池１の凸部電極１ａと平面電極１ｂに溶接して接続する。ただし、リード板３は、接続リード１９を回路基板４に接続する状態で電池１に溶接して接続することもできる。
(4) 電池１の上に基板ホルダ５に入れた回路基板４を配置し、リード板３の接続リード１９を回路基板４に接続する。基板ホルダ５の内部に固定している回路基板４は、リード線２０を介してリード板３の接続リード１９の先端を接続している。図のパック電池は、回路基板４にリード線２０を半田付けして連結して、リード線２０をリード板３の接続リード１９に半田付けして連結する。
この状態で、電池１とケース２と回路基板４と基板ホルダ５が互いに連結されて電池組立１０となる。
(5) その後、図示しないが、電池組立１０を外ケースに入れてパック電池とする。 The above battery pack is assembled as follows.
(1) The battery 1 is put in the holding cylinder 6 of the first case 2A and the second case 2B, and the first case 2A and the second case 2B are connected as shown in FIG. In this state, the battery 1 is stored in the case 2 so as not to come out of the holding cylinder 6.
(2) Wrap an adhesive tape around the through hole 16 of the first case 2A, and connect the battery 1 to the case 2 so as not to rotate.
(3) The lead plate 3 is disposed in the opening 8 of the case 2, and the lead plate 3 is welded and connected to the convex electrode 1a and the flat electrode 1b of the battery 1 in the holding cylinder 6. However, the lead plate 3 can also be connected by welding to the battery 1 with the connection leads 19 connected to the circuit board 4.
(4) The circuit board 4 placed in the board holder 5 is placed on the battery 1, and the connection leads 19 of the lead plate 3 are connected to the circuit board 4. The circuit board 4 fixed inside the substrate holder 5 is connected to the tip of the connection lead 19 of the lead plate 3 via the lead wire 20. In the illustrated battery pack, the lead wire 20 is soldered and connected to the circuit board 4, and the lead wire 20 is soldered and connected to the connection lead 19 of the lead plate 3.
In this state, the battery 1, the case 2, the circuit board 4, and the board holder 5 are connected to each other to form a battery assembly 10.
(5) Thereafter, although not shown, the battery assembly 10 is put into an outer case to form a battery pack.

従来のパック電池の分解斜視図である。It is a disassembled perspective view of the conventional battery pack. 本発明の一実施例にかかるパック電池の電池組立の斜視図である。It is a perspective view of the battery assembly of the pack battery concerning one Example of this invention. 図２に示す電池組立の分解斜視図である。FIG. 3 is an exploded perspective view of the battery assembly shown in FIG. 2. 図２に示す電池組立の基板ホルダを取り除いた状態を示す斜視図である。It is a perspective view which shows the state which removed the board | substrate holder of the battery assembly shown in FIG. 図４に示すケースからリード板を取り外した状態を示す分解斜視図である。It is a disassembled perspective view which shows the state which removed the lead board from the case shown in FIG. 図５に示すケースの斜視図である。It is a perspective view of the case shown in FIG. 図６に示すケースの分解斜視図である。It is a disassembled perspective view of the case shown in FIG. 図７に示すケースの背面斜視図である。FIG. 8 is a rear perspective view of the case shown in FIG. 7. 図４に示すケースの正面図である。It is a front view of the case shown in FIG. 図９に示すケースのＡ−Ａ線断面図である。FIG. 10 is a cross-sectional view taken along line AA of the case illustrated in FIG. 9. 図７に示す第２のケースの要部拡大斜視図である。It is a principal part expansion perspective view of the 2nd case shown in FIG. 図８に示す第１のケースの要部拡大斜視図である。It is a principal part expansion perspective view of the 1st case shown in FIG.

符号の説明Explanation of symbols

１…電池 １ａ…凸部電極 １ｂ…平面電極
２…ケース ２Ａ…第１のケース ２Ｂ…第２のケース
３…リード板 ３’…リード板
４…回路基板
５…基板ホルダ
６…保持筒
７…境界壁
８…開口部
９…ストッパリブ
１０…電池組立
１１…連結フック
１２…連結部
１３…保持筒連結縁
１４…連結溝
１５…連結凸条
１６…貫通孔
１７…Ｕ字スリット
１８…直線スリット
１９…接続リード
２０…リード線
３１…電池
３２…ケース
３３…リード板
３６…保持筒 DESCRIPTION OF SYMBOLS 1 ... Battery 1a ... Convex part electrode 1b ... Planar electrode 2 ... Case 2A ... 1st case 2B ... 2nd case 3 ... Lead board 3 '... Lead board 4 ... Circuit board 5 ... Substrate holder 6 ... Holding cylinder 7 ... Boundary wall 8 ... Opening portion 9 ... Stopper rib 10 ... Battery assembly 11 ... Connection hook 12 ... Connection portion 13 ... Holding cylinder connection edge 14 ... Connection groove 15 ... Connection protrusion 16 ... Through hole 17 ... U-shaped slit 18 ... Linear slit 19 ... Connection lead 20 ... Lead wire 31 ... Battery 32 ... Case 33 ... Lead plate 36 ... Holding cylinder

Claims (7)

一方の端部を凸部電極(1a)として他の端部を平面電極(1b)とする複数の電池(1)が端面を同一の面に位置させる平行な姿勢でケース(2)に並べて収納され、ケース(2)に収納している互いに隣接した電池(1)の凸部電極(1a)と平面電極(1b)には、リード板(3)を接続してリード板(3)で複数の電池(1)を連結しているパック電池であって、
ケース(2)はプラスチックを成形して製作されたもので、内部に収納している電池(1)を挿入して定位置に配置する複数の保持筒(6)を互いに隣接して設けており、
さらに、ケース(2)は、保持筒(6)の両端に、凸部電極(1a)と平面電極(1b)を外部に表出させる開口部(8)を設けており、
さらにまた、ケース(2)は、保持筒(6)の開口部(8)の周縁に沿って、電池(1)の平面電極(1b)の突出位置を特定すると共に、リード板(3)を定位置に配置するストッパリブ(9)を一体的に成形して設けており、
このストッパリブ(9)に平面電極(1b)を当接させて、電池(1)の平面電極(1b)側の突出位置を特定しており、電池(1)の凸部電極(1a)側の突出位置は保持筒(6)の開口部(8)の周縁又はストッパリブ(9)で特定して、電池(1)の凸部電極(1a)と平面電極(1b)を同一面に配置しており、
リード板(3)は、ストッパリブ(9)の内側に配置される外形であって、リード板(3)をス
トッパリブ(9)の内側に位置させてケース(2)の定位置に配置しており、このリード板(3)を電池(1)の凸部電極(1a)と平面電極(1b)に接続してなるパック電池。 A plurality of batteries (1) having one end as a convex electrode (1a) and the other end as a flat electrode (1b) are stored side by side in the case (2) in a parallel posture with the end faces positioned on the same surface. The lead plate (3) is connected to the convex electrode (1a) and the planar electrode (1b) of the battery (1) adjacent to each other stored in the case (2), and the lead plate (3) A battery pack connecting the batteries (1) of
The case (2) is manufactured by molding plastic, and is provided with a plurality of holding cylinders (6) adjacent to each other for inserting the battery (1) housed inside and placing it in place. ,
Furthermore, the case (2) is provided with openings (8) for exposing the convex electrode (1a) and the planar electrode (1b) to the outside at both ends of the holding cylinder (6).
Furthermore, the case (2) specifies the protruding position of the planar electrode (1b) of the battery (1) along the periphery of the opening (8) of the holding cylinder (6), and the lead plate (3). The stopper rib (9) to be placed at a fixed position is integrally molded and provided.
The flat electrode (1b) is brought into contact with the stopper rib (9) to specify the protruding position of the battery (1) on the flat electrode (1b) side, and the protruding electrode (1a) side of the battery (1) is specified. The protruding position is specified by the periphery of the opening (8) of the holding cylinder (6) or the stopper rib (9), and the convex electrode (1a) and the planar electrode (1b) of the battery (1) are arranged on the same surface. And
The lead plate (3) has an outer shape that is placed inside the stopper rib (9), and the lead plate (3) is placed inside the stopper rib (9) and placed at a fixed position on the case (2). A battery pack comprising the lead plate (3) connected to the convex electrode (1a) and the planar electrode (1b) of the battery (1). ストッパリブ(9)を凸部電極(1a)と平面電極(1b)とが互いに隣接して配置された電池(1)間に配設している請求項１に記載されるパック電池。 The battery pack according to claim 1, wherein the stopper rib (9) is disposed between the batteries (1) in which the convex electrode (1a) and the planar electrode (1b) are arranged adjacent to each other . ケース(2)が、電池(1)の片方を挿入する第１のケース(2A)と、電池(1)の他方を挿入する第２のケース(2B)を備え、第１のケース(2A)と第２のケース(2B)はプラスチック製で、電池(1)の一部を挿入して定位置に配置する保持筒(6)の一部を一体的に成形して設けており、第１のケース(2A)と第２のケース(2B)を連結して、保持筒(6)の内部に電池(1)を収納している請求項１に記載されるパック電池。   The case (2) includes a first case (2A) into which one of the batteries (1) is inserted and a second case (2B) into which the other of the batteries (1) is inserted, and the first case (2A) The second case (2B) is made of plastic, and is formed by integrally molding a part of the holding cylinder (6) into which a part of the battery (1) is inserted and arranged at a fixed position. The battery pack according to claim 1, wherein the case (2A) and the second case (2B) are connected, and the battery (1) is accommodated in the holding cylinder (6). 第１のケース(2A)と第２のケース(2B)の連結部であって、電位差のある電池(1)を収納する保持筒(6)の境界に沿って一方のケース(2)の保持筒連結縁(13)に連結溝(14)を、他方のケース(2)の保持筒連結縁(13)には連結溝(14)に案内される連結凸条(15)を設けており、連結溝(14)に連結凸条(15)を入れて、第１のケース(2A)と第２のケース(2B)を連結している請求項３に記載されるパック電池。   One case (2) is held along the boundary of a holding cylinder (6) that is a connecting portion between the first case (2A) and the second case (2B) and stores the battery (1) having a potential difference. A connecting groove (14) is provided on the tube connecting edge (13), and a connecting protrusion (15) guided by the connecting groove (14) is provided on the holding tube connecting edge (13) of the other case (2). The battery pack according to claim 3, wherein a connecting protrusion (15) is inserted into the connecting groove (14) to connect the first case (2A) and the second case (2B). 複数の電池(1)を２段に積層して配置すると共に、上段に積層する電池(1)を下段の電池(1)の谷間に配設している請求項１に記載されるパック電池。   The battery pack according to claim 1, wherein the plurality of batteries (1) are arranged in two layers, and the battery (1) to be laminated in the upper stage is disposed in the valley of the lower battery (1). 多段に積層して配置している電池(1)の上面に回路基板(4)を配設しており、この回路基板(4)にリード板(3)を接続している請求項１に記載されるパック電池。   The circuit board (4) is arranged on the upper surface of the battery (1) arranged in multiple layers, and a lead plate (3) is connected to the circuit board (4). Battery pack. ケース(2)が保持筒(6)に貫通孔(16)を設けて、この貫通孔(16)に位置するように保持筒(6)の表面に粘着テープを接着しており、粘着テープを保持筒(6)の表面と電池(1)の表面に接着している請求項１に記載されるパック電池。
The case (2) is provided with a through hole (16) in the holding cylinder (6), and an adhesive tape is adhered to the surface of the holding cylinder (6) so as to be positioned in the through hole (16). The battery pack according to claim 1, wherein the battery pack is adhered to the surface of the holding cylinder (6) and the surface of the battery (1).
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