JPH0535562Y2 - - Google Patents

Description

【考案の詳細な説明】[Detailed explanation of the idea]

産業上の利用分野 本考案は携帯用機器の電源、特にカメラ用電源
として用いられる電池パツクに関するものであ
る。 従来の技術 二つ割ケースと、これらケースを重合して形成
される内部空間に収納され相互に電気的に結合さ
れた少なくとも２ケの電池よりなる電池群と、ケ
ースの外表面に露出し、一端が電池群の正負極端
子にそれぞれ接続される正負極外部端子板とを備
えた電池パツクは、例えば実開昭61−39861号公
報に開示されている。 考案が解決しようとする問題点 第８図乃至第１１図に示される上記公報の構成
により、外部端子板７′，８′がケース１の端面或
いは側面のいずれにもあるため器具への接触に対
する設計自由度は高く、開孔９′内に形成した支
持片１０′により外部端子板７′，８′の外部衝撃、
変形に対する不都合は解消されている。しかし、
外部端子板７′，８′の他端７２′，８２′をケース
側面における開孔縁部の内側に形成した凹部１１
に係止するための、挿入作業において、凹部１１
内に十分挿入されず、浮いた状態又は、はずれた
状態になり、外部端子板７′，８′が不安定な外観
になることがあつた。又外部端子板７′，８′の一
端を電池群３の所定の電極端子５，６にスポツト
溶接して電気接続する場合、外部端子板７′，
８′の他端７２′，８２′をケース側面における開
孔縁部の内側に形成した凹部１１に一時、係止さ
れた外部端子板７′，８′が、電池群の高さのバラ
ツキ特に電池総高の低い場合に、溶接時の押さえ
により、反動で外部端子板７′，８′が、挿入した
凹部１１より浮き上り、電池パツクの外観不良が
発生していた。 本考案は、上記のような従来の問題点を解消
し、製造が容易で、確実な電池パツクを提供する
ことを目的とする。 問題点を解決するための手段 本考案は、電池パツクを構成する二つ割ケース
１，２のうち、一方のケース１の側面に開孔９を
形設し、この開孔９より側面から端面の端部にか
けて設けた逆Ｌ字状凹部に断面略コの字状の外部
端子板７，８の内面を支持する支持部１０を形成
すると共に、他方のケース２の端面内側に外部端
子板７，８の一方の端部７２，８２を係止する凹
部１１を形成し、外部端子板７，８の他方の端部
７１，８１を電池の正負極端子５，６それぞれに
溶接固定したことを特徴とするものである。 作 用 本考案の構成によれば、ケース側面から端面の
端部にかけての凹部状の支持部を形成することに
よつて外部端子板が載置支持され、更に他方のケ
ースの端面内側に形成した逆Ｌ字状凹部に外部端
子板の他端を係止することにより、外部端子板が
仮止めされ、確実な電池パツク製造に役立つこと
となる。 実施例 以下、本考案の実施例を図面に基づき説明す
る。第１図乃至第７図において１，２は略同一形
状を呈する合成樹脂製の二つ割ケースにして、こ
れらケースを重合させることにより電池群を収納
する内部空間が形成される。３は少なくとも２ケ
（本実施例では２ケの場合を示している）の電池
４，４を直列接続してなる電池群であつて、その
上面には電池群としての正負極端子５，６が位置
している。 そして、一方のケース１には第３図イ，ロに示
すように側面に断面略コの字状の正負極外部端子
板７，８が夫々露出する開孔９，９が形成されて
おり、且つ開孔９，９のある側面から端面の端部
にかけて逆Ｌ字状凹部の支持部１０，１０が形成
され、断面略コの字状の外部端子板７，８が夫々
支持されている。さらに他方のケース２端面の内
側に前記外部端子板７，８の一方の端部７２，８
２を係止する凹部１１，１１が形成されている。 次に第５図乃至第７図を参照して組立方法を詳
述する。先ず第５図に示す如く一方のケース１の
後方より側面にある開孔９に正負極外部端子板
７，８の一方の端部７１，８１側の夫々挿通し、
他方の端部７２，８２側を側面から端面にかけて
形成した逆Ｌ字状凹部に挿着する。 ついで第６図に示す如くケース１の内部空間に
電池４，４を電池群３の正負極端子５，６が上面
に位置するように収納する。その後、第７図に示
す如くケース１の端面に形成した切欠部１２を介
して一対の溶接極を用いて正負極外部端子板７，
８の一端７１，８１を電池群３の正負極端子５，
６に溶接して電気的、機械的に結合し、又電池群
３の下面については、電池群３とケース１の内底
面との間にヒユーズ１４を組込した接続片１５を
介挿し、ケース１の下端面に設けた切欠部１２を
介して前述同様に接続片１５の両端を夫々電池
４，４の正負極端子にスポツト溶接して、電池
４，４を直列に電気接続する。その後正負極外部
端子板７，８の一端７１，８１に相応する位置に
凹部を形成したケース２をケース１に被せ両ケー
スの接合部を例えば超音波溶着等により接着して
完成させる。 以上の構成の本考案の電池パツクをＡ、第８図
乃至第１１図に見られる従来の電池パツクをＢと
し、各1000個、製造した場合の、外部端子板の浮
き上りによる外観不良数を第１表に示した。 INDUSTRIAL APPLICATION FIELD The present invention relates to a battery pack used as a power source for portable equipment, particularly as a power source for cameras. BACKGROUND ART A battery group consisting of a bisected case, at least two batteries housed in an internal space formed by overlapping these cases and electrically coupled to each other, and exposed on the outer surface of the case, A battery pack having positive and negative external terminal plates, one end of which is respectively connected to the positive and negative terminals of a battery group, is disclosed in, for example, Japanese Utility Model Application No. 61-39861. Problems to be Solved by the Invention According to the structure of the above-mentioned publication shown in FIGS. 8 to 11, since the external terminal plates 7' and 8' are located on either the end surface or the side surface of the case 1, it is difficult to contact the device. The degree of freedom in design is high, and the support piece 10' formed in the opening 9' protects the external terminal plates 7' and 8' from external impact.
The problem with deformation has been resolved. but,
The other ends 72' and 82' of the external terminal plates 7' and 8' are recessed portions 11 formed inside the edge of the opening on the side surface of the case.
In the insertion operation for locking the recess 11
In some cases, the external terminal plates 7' and 8' were not fully inserted into the terminal, and were left floating or detached, giving the external terminal plates 7' and 8' an unstable appearance. In addition, when one end of the external terminal plates 7', 8' is electrically connected to the predetermined electrode terminals 5, 6 of the battery group 3 by spot welding, the external terminal plates 7', 8'
The external terminal plates 7', 8', whose other ends 72', 82' are temporarily locked in the recesses 11 formed inside the aperture edges on the side of the case, are fixed to When the total height of the battery is low, the external terminal plates 7' and 8' rise up from the inserted recess 11 due to the reaction caused by the pressing during welding, resulting in poor appearance of the battery pack. The present invention aims to solve the above-mentioned conventional problems and provide a reliable battery pack that is easy to manufacture. Means for Solving the Problems In the present invention, an opening 9 is formed in the side surface of one of the two split cases 1 and 2 constituting the battery pack, and the end surface is A support part 10 for supporting the inner surfaces of the external terminal plates 7 and 8 having a substantially U-shaped cross section is formed in an inverted L-shaped recess provided over the end of the case 2, and the external terminal plate 7 is formed inside the end surface of the other case 2. , 8 is formed, and the other ends 71, 81 of the external terminal plates 7, 8 are welded and fixed to the positive and negative terminals 5, 6 of the battery, respectively. This is a characteristic feature. Effects According to the configuration of the present invention, the external terminal board is placed and supported by forming the recessed support portion from the side surface of the case to the end of the end surface, and furthermore, the external terminal board is placed and supported by forming the recessed support portion from the side surface of the case to the end of the end surface. By locking the other end of the external terminal board in the inverted L-shaped recess, the external terminal board is temporarily secured, which is useful for reliable battery pack manufacturing. Embodiments Hereinafter, embodiments of the present invention will be described based on the drawings. In FIGS. 1 to 7, numerals 1 and 2 are two-part synthetic resin cases having substantially the same shape, and by overlapping these cases, an internal space for accommodating the battery group is formed. Reference numeral 3 denotes a battery group formed by connecting at least two batteries 4, 4 in series (the case of two batteries is shown in this embodiment), and positive and negative terminals 5, 6 as the battery group are provided on the upper surface of the battery group. is located. As shown in FIGS. 3A and 3B, one case 1 has openings 9, 9 formed on its side surface through which positive and negative electrode external terminal plates 7, 8 having a substantially U-shaped cross section are exposed, respectively. In addition, support portions 10, 10 are formed in the form of inverted L-shaped recesses from the side surfaces where the openings 9, 9 are located to the ends of the end surfaces, and external terminal plates 7, 8 having a substantially U-shaped cross section are supported, respectively. Further, one end portion 72, 8 of the external terminal plate 7, 8 is placed inside the end surface of the other case 2.
Recesses 11, 11 for locking 2 are formed. Next, the assembly method will be described in detail with reference to FIGS. 5 to 7. First, as shown in FIG. 5, one end portions 71 and 81 of the positive and negative external terminal plates 7 and 8 are inserted into the openings 9 on the sides from the rear of one case 1, respectively.
The other end portions 72 and 82 are inserted into an inverted L-shaped recess formed from the side surface to the end surface. Then, as shown in FIG. 6, the batteries 4, 4 are housed in the internal space of the case 1 so that the positive and negative terminals 5, 6 of the battery group 3 are located on the top surface. Thereafter, as shown in FIG. 7, the positive and negative external terminal plates 7,
8 are connected to the positive and negative terminals 5, 81 of the battery group 3.
6 to connect them electrically and mechanically, and for the bottom surface of the battery group 3, a connecting piece 15 incorporating a fuse 14 is inserted between the battery group 3 and the inner bottom surface of the case 1. Both ends of the connecting piece 15 are spot-welded to the positive and negative terminals of the batteries 4, 4, respectively, through the notch 12 provided on the lower end surface of the battery 1, as described above, thereby electrically connecting the batteries 4, 4 in series. Thereafter, the case 2, which has recesses formed at positions corresponding to the ends 71, 81 of the positive and negative external terminal plates 7, 8, is placed over the case 1, and the joints of both cases are bonded together by, for example, ultrasonic welding. The battery pack of the present invention having the above configuration is designated as A, and the conventional battery pack shown in FIGS. It is shown in Table 1.

【表】 考案の効果 以上の説明から明らかなように、本考案の電池
パツクは、外部端子板の浮き上り等による外観不
良もなく、また量産性の優れた効果が得られる実
用的価値の高いものである。[Table] Effects of the invention As is clear from the above explanation, the battery pack of the invention has high practical value as there is no appearance defect due to lifting of the external terminal board, etc., and excellent effects in mass production can be obtained. It is something.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図乃至第７図は本考案の電池パツクを示す
図、第８図乃至第１１図が従来の電池パツクを示
す図であり、第１図は電池パツクの平面図、第２
図は第１図のａ−a′断面図、第３図イは第１図ｂ
−b′断面図、第３図ロはその要部拡大断面図、第
４図は第２図のｃ−c′断面図、第５図、第６図、
第７図は本考案の組立状態を示す分解斜視図、第
８図、第９図，第１０図、第１１図は従来の組立
状態を示す分解斜視図である。 １，２……二つ割ケース、３……電池群、４…
…電池、５，６……正負極端子、７，７′……正
極外部端子板、８，８′……負極外部端子板、９，
９′……開孔、１０……支持部、１０′……支持
片、１１……凹部、１２，１２′……切欠部、１
３，１３′……突出部、１４……ヒユーズ、１５
……接続片。 1 to 7 are views showing the battery pack of the present invention, and FIGS. 8 to 11 are views showing conventional battery packs. FIG. 1 is a plan view of the battery pack, and FIG.
The figure is a sectional view taken along line a-a' in figure 1, and figure 3 a is a cross-sectional view taken in figure 1 b.
-b' sectional view, FIG.
FIG. 7 is an exploded perspective view showing the assembled state of the present invention, and FIGS. 8, 9, 10, and 11 are exploded perspective views showing the conventional assembled state. 1, 2...Half-split case, 3...Battery group, 4...
...Battery, 5,6...Positive and negative terminals, 7,7'...Positive external terminal board, 8,8'...Negative external terminal board, 9,
9'...Opening hole, 10...Support part, 10'...Support piece, 11...Recessed part, 12, 12'...Notch part, 1
3, 13'...Protrusion, 14...Fuse, 15
...connection piece.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 二つ割のケース１，２と、これらケース１，２
を重合して形成される内部空間に収納され相互に
電気的に結合された少なくとも２ケの電池４，４
よりなる電池群３と、前記ケース１の外表面に露
出し一端が前記電池群３の正負極端子５，６に
夫々接続される断面略コの字状の正負極外部端子
板７，８とを備え、一方の前記ケース１の側面に
開孔９を形設し、この開孔９より側面から端面の
端部にかけて設けた逆Ｌ字状凹部に前記外部端子
板７，８の内面を支持する支持部１０を形成する
と共に、他方のケース２の端面内側に前記外部端
子板の一方の端部７２，８２を係止する凹部１１
を形成し、外部端子板７，８の他方の端部７１，
８１を前記電池群３の正負極端子５，６それぞれ
に溶接固定してなる電池パツク。 Two cases 1 and 2 and these cases 1 and 2
At least two batteries 4, 4 are housed in an internal space formed by polymerizing and are electrically coupled to each other.
a battery group 3 consisting of a battery group 3; and positive and negative external terminal plates 7 and 8 having a substantially U-shaped cross section and exposed on the outer surface of the case 1 and having one end connected to the positive and negative terminals 5 and 6 of the battery group 3, respectively. An opening 9 is formed in the side surface of one of the case 1, and the inner surfaces of the external terminal plates 7 and 8 are supported in an inverted L-shaped recess provided from the opening 9 from the side surface to the end of the end surface. A recess 11 that forms a support portion 10 for holding the external terminal plate and that locks one end 72, 82 of the external terminal board inside the end surface of the other case 2.
, and the other end 71 of the external terminal plates 7 and 8,
81 are welded and fixed to the positive and negative terminals 5 and 6 of the battery group 3, respectively.