JPH05205726A - Sealed type lead-acid battery - Google Patents
Sealed type lead-acid batteryInfo
- Publication number
- JPH05205726A JPH05205726A JP3111603A JP11160391A JPH05205726A JP H05205726 A JPH05205726 A JP H05205726A JP 3111603 A JP3111603 A JP 3111603A JP 11160391 A JP11160391 A JP 11160391A JP H05205726 A JPH05205726 A JP H05205726A
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- adhesive
- terminal plate
- battery
- notch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、機器のコードレス化に
伴い需要が急増している密閉型鉛蓄電池の端子部の改善
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in the terminal portion of a sealed lead-acid battery, the demand of which is rapidly increasing as the equipment becomes cordless.
【０００２】[0002]
【従来の技術】従来の密閉型鉛蓄電池の構成について図
を用いながら説明する。2. Description of the Related Art The structure of a conventional sealed lead-acid battery will be described with reference to the drawings.
【０００３】図３は、従来の密閉型鉛蓄電池の構成を示
す斜視図である。図３に於いて、１は合成樹脂でできた
電池ケース、２は極柱、３は端子板、４は端子部を液
密，気密に封止するための接着剤である。FIG. 3 is a perspective view showing the structure of a conventional sealed lead-acid battery. In FIG. 3, 1 is a battery case made of synthetic resin, 2 is a pole, 3 is a terminal plate, and 4 is an adhesive for sealing the terminal part liquid-tightly and air-tightly.
【０００４】このような端子部を構成するためには、ま
ず極柱２を電池ケース１に設けた取り出し穴に挿入し突
出部を端子板と溶接し固定する。その後、接着剤４を流
し込み、固化させ封止する。In order to construct such a terminal portion, first, the pole 2 is inserted into a take-out hole provided in the battery case 1 and the protruding portion is welded and fixed to the terminal plate. After that, the adhesive 4 is poured in, solidified and sealed.
【０００５】また、接着剤４に埋め込んだ端子取り出し
部分は、電解液が極柱２および端子板３と接着剤４との
間を伝わって電池外部に漏れ出て端子板を腐食させるこ
とを防止するために、その距離を比較的長く設計してい
る。Also, the terminal extraction portion embedded in the adhesive 4 prevents the electrolytic solution from traveling between the pole 2 and the terminal plate 3 and the adhesive 4 and leaking out of the battery to corrode the terminal plate. In order to do so, the distance is designed to be relatively long.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、接着剤
４に埋め込んだ極柱２および端子板３の埋め込み距離を
長くすることは、電池の大きさに制限があることや電池
自体が小型化してきていることから非常に困難になって
きている。そのため、電池の小型化に当たっては端子板
３の耐食性を犠牲にせざるを得なかった。However, increasing the embedding distance between the pole 2 and the terminal plate 3 embedded in the adhesive 4 limits the size of the battery and reduces the size of the battery itself. It's becoming very difficult to do so. Therefore, in reducing the size of the battery, the corrosion resistance of the terminal plate 3 has to be sacrificed.
【０００７】また一般的に、接着剤４にはエポキシ系接
着剤、端子板３には真鍮を用いているために熱膨張率が
異なる。そのために、真冬の戸外でも暖房の効いた室内
でも連続的に使うような場合では、接着剤４と端子板３
との間に歪みが生じ電解液が這い上がり端子板を腐食さ
せるという問題があった。In general, since the adhesive 4 is an epoxy adhesive and the terminal plate 3 is brass, the coefficient of thermal expansion is different. For this reason, the adhesive 4 and the terminal board 3 should be used continuously when used outdoors in the middle of winter or in a room where heating is effective.
There was a problem that distortion occurred between the electrolyte and the electrolytic solution crawling up and corroding the terminal board.
【０００８】本発明は、このような従来の課題を解決す
ることを目的とする。An object of the present invention is to solve such a conventional problem.
【０００９】[0009]
【課題を解決するための手段】これらの従来の課題を解
決するために、接着剤に埋め込んだ端子板の一部に切り
欠きまたは穴を設け、接着剤中に埋め込んだ端子板の距
離を長くするとともに、端子と接着剤の間の歪みを減少
させたものである。In order to solve these conventional problems, a notch or hole is provided in a part of the terminal board embedded in the adhesive to increase the distance of the terminal board embedded in the adhesive. In addition, the strain between the terminal and the adhesive is reduced.
【００１０】[0010]
【作用】本発明の構成による作用を図１に基づいて説明
する。図１は本発明の構成に示す電池の斜視図であり、
１は電池ケース、２は極柱、３は端子板、４は封止のた
めの接着剤、５は端子板３の一部に設けた切り欠きであ
る。また、Ｗ１は切り欠き部の幅、Ｗ２は切り欠き部５
を除いた端子板の幅、Ｗ３は端子板の幅である。The operation of the structure of the present invention will be described with reference to FIG. FIG. 1 is a perspective view of the battery shown in the configuration of the present invention,
1 is a battery case, 2 is a pole, 3 is a terminal plate, 4 is an adhesive for sealing, and 5 is a notch provided in a part of the terminal plate 3. W1 is the width of the cutout portion, and W2 is the cutout portion 5.
W3 is the width of the terminal plate excluding.
【００１１】まず、切り欠き部５を設けたことにより、
端子３の埋め込み距離は Ｗ３−（Ｗ２×２）……式１ で示される値だけ長くなる。従って、Ｗ３を大きくする
こと、およびＷ２を小さくすることによって埋め込み距
離を長くすることができる。First, by providing the notch 5,
The embedding distance of the terminal 3 is increased by W3- (W2 × 2) ... Equation 1 Therefore, the embedding distance can be increased by increasing W3 and decreasing W2.
【００１２】また端子板３と接着剤４とは材質が異な
り、互いの熱膨張率が異なっている。線膨張係数で比較
すると、端子板３の真鍮は１７．５×１０-6（２０℃、
≪６７Ｃｕ，３３Ｚｎ≫）、接着剤のエポキシ樹脂は
６．２×１０-5（Ｔｇ以下）であり、両者に大きな差が
ある。そのために、接着剤４に埋め込んだ端子部分が長
くなればなるほど両者間の歪みが大きくなり、剥離が起
きやすくなる。The terminal plate 3 and the adhesive 4 are made of different materials and have different coefficients of thermal expansion. Comparing the linear expansion coefficients, the brass of the terminal plate 3 is 17.5 × 10 −6 (20 ° C.,
<< 67Cu, 33Zn >>) and the epoxy resin of the adhesive is 6.2 × 10 −5 (Tg or less), and there is a large difference between the two. Therefore, the longer the terminal portion embedded in the adhesive 4 is, the larger the distortion between them becomes, and the easier the peeling occurs.
【００１３】この歪みを抑制するために端子板３の接着
剤中に埋め込んだ部分の一部に切り欠き部５を設けた。
この切り欠き部を設けることによって、膨張率の高いエ
ポキシ樹脂の歪みを吸収し、両者の剥離を防ぐことがで
きる。In order to suppress this distortion, the notch 5 is provided in a part of the portion of the terminal plate 3 embedded in the adhesive.
By providing this cutout portion, it is possible to absorb the strain of the epoxy resin having a high expansion coefficient and prevent the peeling of the both.
【００１４】[0014]
【実施例】以下、本発明の一実施例について図面を用い
ながら説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
【００１５】図２は本発明の一実施例を示す断面図であ
る。図２において６は電池内部の極板群である。本実施
例には正極板１枚，負極板２枚の構成からなる定格容量
１．８Ahの電池を用いた。端子板３は厚み０．８mmの真
鍮の表面を半田メッキしたものを用いた。また、接着剤
４に埋め込んだ端子距離ｌは２０mmにした。端子板３に
設けた切れ目部５の幅Ｗ１および切れ目部の接続幅Ｗ２
は高率放電時の電圧特性を落とさないよう実験的にＷ１
＝１mm，Ｗ２＝３mm，Ｗ３＝１５mmとした。また、接着
剤４に埋め込んだ端子距離ｌ＝２０mmとしたので、本発
明品の埋め込み距離は、式１で示した値を加えて２９mm
となり、約４５％増加させることができた。FIG. 2 is a sectional view showing an embodiment of the present invention. In FIG. 2, 6 is an electrode plate group inside the battery. In this example, a battery having a rated capacity of 1.8 Ah, which was composed of one positive electrode plate and two negative electrode plates, was used. As the terminal plate 3, a brass plate having a thickness of 0.8 mm and having a surface plated with solder was used. The terminal distance 1 embedded in the adhesive 4 was set to 20 mm. The width W1 of the cut 5 and the connection width W2 of the cut provided on the terminal board 3.
Is experimentally set to W1 so as not to drop the voltage characteristics during high rate discharge.
= 1 mm, W2 = 3 mm, W3 = 15 mm. Further, since the terminal distance 1 embedded in the adhesive 4 was set to 20 mm, the embedded distance of the product of the present invention was 29 mm including the value shown in the formula 1.
It was possible to increase by about 45%.
【００１６】この切り欠き部５を設けた本発明の電池
と、従来の構造の電池を各々１００個作成した。これら
の電池を、実使用を想定したヒートサイクル試験を行っ
た。ヒートサイクルは、−４０℃で２時間、６５℃で２
時間を１サイクルとして４０サイクル行い、端子板の腐
食状態を調べた。その結果を（表１）に示した。A battery of the present invention having the cutout portion 5 and a battery having a conventional structure were prepared for 100 batteries each. These batteries were subjected to a heat cycle test assuming actual use. Heat cycle: -40 ° C for 2 hours, 65 ° C for 2 hours
Forty cycles were performed with the time being one cycle, and the corrosion state of the terminal board was examined. The results are shown in (Table 1).
【００１７】[0017]
【表１】 [Table 1]
【００１８】（表１）から明らかなように、従来の電池
では２６％の端子腐食率であったのに対し、本発明の電
池では腐食が全くなかった。また従来の電池の端子部の
接着剤４には、亀裂が起きているものもあったが、本発
明品には全く起きていなかった。なお本発明品では切り
欠き部５を２箇所に設けたが、多数箇所設けても効果が
あること、切り欠きの代わりに穴を設けても同様の効果
があることは明白である。As is clear from (Table 1), the conventional battery had a terminal corrosion rate of 26%, whereas the battery of the present invention had no corrosion at all. Further, although some of the adhesives 4 at the terminal portion of the conventional battery had cracks, none of them occurred at all in the product of the present invention. Although the cutouts 5 are provided at two locations in the product of the present invention, it is clear that providing the cutouts at a plurality of locations has the same effect and providing holes instead of the cutouts has the same effect.
【００１９】[0019]
【発明の効果】このように端子取り出し部を接着剤で封
止した構成において、接着剤埋め込み部の端子に切り欠
きまたは穴を設けることによって電池実使用時の端子腐
食を抑制することができる。As described above, in the structure in which the terminal take-out portion is sealed with the adhesive, the terminal corrosion at the time of actual use of the battery can be suppressed by providing the adhesive-embedded portion with the notch or the hole.
【図１】本発明の鉛蓄電池を示す断面図FIG. 1 is a sectional view showing a lead acid battery of the present invention.
【図２】本発明の実施例を示す断面図FIG. 2 is a sectional view showing an embodiment of the present invention.
【図３】従来電池の構造を示す断面図FIG. 3 is a sectional view showing the structure of a conventional battery.
１ 電池ケース ２ 極柱 ３ 端子板 ４ 接着剤 ５ 端子板３に設けた切り欠き部 ６ 極板群 DESCRIPTION OF SYMBOLS 1 Battery case 2 Pole column 3 Terminal plate 4 Adhesive 5 Notch part provided in the terminal plate 6 Group of electrode plates
Claims (1)
に端子取り出し部を接着剤で封止した構成を備え、前記
接着剤中に埋め込まれた端子板の一部分には極柱が固定
される位置以外の部分に切り欠きまたは穴を設けたこと
を特徴とする密閉型鉛蓄電池。1. A structure in which a part of a terminal plate is embedded in an adhesive and a terminal take-out portion is sealed with an adhesive, and a pole is fixed to a part of the terminal plate embedded in the adhesive. A sealed lead acid battery characterized in that a notch or a hole is provided in a portion other than the position where the lead-acid battery is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03111603A JP3097171B2 (en) | 1991-05-16 | 1991-05-16 | Sealed lead-acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03111603A JP3097171B2 (en) | 1991-05-16 | 1991-05-16 | Sealed lead-acid battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05205726A true JPH05205726A (en) | 1993-08-13 |
| JP3097171B2 JP3097171B2 (en) | 2000-10-10 |
Family
ID=14565538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03111603A Expired - Fee Related JP3097171B2 (en) | 1991-05-16 | 1991-05-16 | Sealed lead-acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3097171B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0619261U (en) * | 1992-08-20 | 1994-03-11 | 日本電池株式会社 | Storage battery |
-
1991
- 1991-05-16 JP JP03111603A patent/JP3097171B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0619261U (en) * | 1992-08-20 | 1994-03-11 | 日本電池株式会社 | Storage battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3097171B2 (en) | 2000-10-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |