JP3127545B2 - Sealed lead-acid battery - Google Patents
Sealed lead-acid batteryInfo
- Publication number
- JP3127545B2 JP3127545B2 JP04014563A JP1456392A JP3127545B2 JP 3127545 B2 JP3127545 B2 JP 3127545B2 JP 04014563 A JP04014563 A JP 04014563A JP 1456392 A JP1456392 A JP 1456392A JP 3127545 B2 JP3127545 B2 JP 3127545B2
- Authority
- JP
- Japan
- Prior art keywords
- sealed lead
- epoxy resin
- acid battery
- bushing
- external terminal
- 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.)
- Expired - Fee Related
Links
- 239000002253 acid Substances 0.000 title claims description 23
- 239000003822 epoxy resin Substances 0.000 claims description 26
- 229920000647 polyepoxide Polymers 0.000 claims description 26
- 229910000978 Pb alloy Inorganic materials 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000008151 electrolyte solution Substances 0.000 description 7
- 230000035939 shock Effects 0.000 description 7
- 238000007789 sealing Methods 0.000 description 3
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- AHDSRXYHVZECER-UHFFFAOYSA-N 2,4,6-tris[(dimethylamino)methyl]phenol Chemical compound CN(C)CC1=CC(CN(C)C)=C(O)C(CN(C)C)=C1 AHDSRXYHVZECER-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 241000219492 Quercus Species 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/172—Arrangements of electric connectors penetrating the casing
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、密閉型鉛蓄電池の、と
くにそのブッシングに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealed lead-acid battery, and more particularly to a bushing thereof.
【０００２】[0002]
【従来の技術】従来の密閉型鉛蓄電池の外部端子部分に
おける密閉化の様子を図２（Ａ），（Ｂ）を用いて説明
する。2. Description of the Related Art A state of hermetic sealing of an external terminal portion of a conventional sealed lead-acid battery will be described with reference to FIGS.
【０００３】図２（Ａ）は外部端子部分の上面図であ
り、図２（Ｂ）は同外部端子部分のＢ−Ｂ′線に沿った
断面図である。FIG. 2A is a top view of an external terminal portion, and FIG. 2B is a cross-sectional view of the external terminal portion taken along line BB '.
【０００４】図２（Ａ），（Ｂ）に示したように、ＡＢ
Ｓ樹脂製の蓋１において電槽内部より導出された正，負
極の極柱２と外部端子３を備えた鉛合金製のブッシング
４を溶接し、その後に蓋１とブッシング４との間のくぼ
みであるポット部分５に、封口充填剤としてエポキシ樹
脂６を充填して電池を密閉化していた。As shown in FIGS. 2A and 2B, AB
A lead alloy bushing 4 having positive and negative electrode poles 2 and external terminals 3 led out from the inside of a battery case is welded to an S-resin lid 1, and then a recess is formed between the lid 1 and the bushing 4. Was filled with an epoxy resin 6 as a sealing filler to hermetically seal the battery.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、図２に
示したようなＬ字形状のブッシングを使用してその周囲
にエポキシ樹脂を充填する場合には、エポキシ樹脂の硬
化時にエポキシ樹脂が収縮して内部に応力ひずみが発生
し、電池使用中の衝撃やヒートショックによりエポキシ
樹脂にクラックが発生することが多々あり、これにより
電解液のクリーピングが起こる場合があった。However, when an epoxy resin is filled around the L-shaped bushing as shown in FIG. 2, the epoxy resin shrinks when the epoxy resin is cured. Stress and strain are generated inside the battery, and cracks often occur in the epoxy resin due to shock or heat shock during use of the battery, which sometimes causes creeping of the electrolytic solution.
【０００６】このクラック発生の原因としては、エポキ
シ樹脂の硬化時に発生した内部応力が均一に分散してい
ないことが考えられる。これはエポキシ樹脂が充填され
るポット部分の形状によるところが大きいと思われる。It is considered that the cause of the crack is that the internal stress generated when the epoxy resin is cured is not uniformly dispersed. This is considered to be largely due to the shape of the pot portion filled with the epoxy resin.
【０００７】本発明は、このような課題を解決するもの
で、電解液のクリーピングを発生させる充填剤としての
エポキシ樹脂内部におけるクラックの発生を防止するこ
とができるブッシングを備えた密閉型鉛蓄電池の提供を
目的とするものである。SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and a sealed lead-acid battery provided with a bushing capable of preventing the occurrence of cracks in an epoxy resin as a filler which causes creeping of an electrolytic solution. The purpose is to provide.
【０００８】[0008]
【課題を解決するための手段】このような課題を解決す
るために、本発明の密閉型鉛蓄電池は、蓋の所定の位置
において、一方の端部に上部方向へ突出する外部端子を
有する鉛合金製のＬ字形ブッシングを、その他方の端部
で電槽内部より導出した正，負極の極柱と溶接し、この
ブッシングの周囲にエポキシ樹脂を充填する密閉型鉛蓄
電池において、前記Ｌ字形ブッシングは、外部端子と極
柱溶接部との間に他よりも細いくびれを設けたものであ
る。SUMMARY OF THE INVENTION In order to solve such a problem, a sealed lead-acid battery according to the present invention comprises a lead having an external terminal projecting upward at one end at a predetermined position of a lid. An L-shaped bushing made of an alloy is welded to the positive and negative poles led out of the battery case at the other end, and filled with epoxy resin around the bushing. Is provided with a narrower narrower than the others between the external terminal and the pole welding portion.
【０００９】[0009]
【作用】本発明の密閉型鉛蓄電池のＬ字形ブッシング
は、外部端子が接続されている部分と極柱が溶接されて
いる部分の間がくびれているので２つの円を合わせた略
８の字の形状をなし、エポキシ樹脂の硬化時の内部応力
をこのくびれ部分で緩和することができるとともに、エ
ポキシ樹脂によるＬ字形ブッシングの締め付けを均一に
することができる。これらのことからエポキシ樹脂内部
でのクラックの発生を防止することができ、エポキシ樹
脂内部にクラックが発生することに起因した電解液のク
リーピングを防止することができる。The L-shaped bushing of the sealed lead-acid battery according to the present invention has an approximately eight-shape in which two circles are combined because the portion where the external terminal is connected and the portion where the pole is welded are constricted. The internal stress at the time of curing of the epoxy resin can be alleviated at the constricted portion, and the tightening of the L-shaped bushing by the epoxy resin can be made uniform. From these facts, it is possible to prevent the occurrence of cracks inside the epoxy resin, and to prevent creeping of the electrolytic solution caused by the occurrence of cracks inside the epoxy resin.
【００１０】[0010]
【実施例】以下、本発明の実施例を図面を参照にしなが
ら説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１１】本発明の密閉型鉛蓄電池のブッシングを用
いた外部端子部分における密閉化の様子を図１（Ａ），
（Ｂ）に示す。FIGS. 1A and 1B show a state of sealing at an external terminal portion using a bushing of the sealed lead-acid battery of the present invention.
It is shown in (B).
【００１２】図１（Ａ）は外部端子部分の上面図であ
り、図１（Ｂ）は同外部端子部分のＡ−Ａ′線に沿った
断面図である。FIG. 1A is a top view of an external terminal portion, and FIG. 1B is a cross-sectional view of the external terminal portion taken along line AA '.
【００１３】図１（Ａ），（Ｂ）に示したように、本発
明の密閉型鉛蓄電池のブッシング４ａは２つの円を合わ
せた略８の字状になっており、一方の端部に上部方向へ
突出する外部端子３を備え、蓋１の所定の位置（くぼみ
部分）において他方の端部が電槽内部から導出された
正，負極の極柱２と溶接される。As shown in FIGS. 1 (A) and 1 (B), the bushing 4a of the sealed lead-acid battery of the present invention has a substantially eight-shaped shape obtained by combining two circles. An external terminal 3 protruding upward is provided, and the other end is welded to the positive and negative poles 2 drawn out of the battery case at a predetermined position (hollow portion) of the lid 1.
【００１４】ついで、蓋１とブッシング４ａの間のポッ
ト部分５にエポキシ樹脂６を充填して電池を密閉化す
る。Next, the pot portion 5 between the lid 1 and the bushing 4a is filled with an epoxy resin 6 to seal the battery.
【００１５】このブッシング４ａを用いた本発明の密閉
型鉛蓄電池と、図２に示したような従来のブッシング４
を用いた従来の密閉型鉛蓄電池を１０個ずつ作製した。A sealed lead-acid battery according to the present invention using the bushing 4a and a conventional bushing 4 as shown in FIG.
Of the conventional sealed lead-acid batteries using the above were manufactured.
【００１６】ここでエポキシ樹脂として主剤のビスフェ
ノールＦエポキシを１００重量部、硬化剤のトリス（ジ
メチルアミノメチル）フェノールを１４重量部の配合比
で混合したものを使用し、エポキシ樹脂の硬化条件は７
０℃の雰囲気中で１時間行うものとした。As the epoxy resin, a mixture of 100 parts by weight of bisphenol F epoxy as a main component and 14 parts by weight of tris (dimethylaminomethyl) phenol as a curing agent was used.
This was performed for 1 hour in an atmosphere of 0 ° C.
【００１７】そして、この本発明と従来の密閉型鉛蓄電
池を用いてヒートショック試験を行った。ヒートショッ
ク試験は、電池を−４０℃の雰囲気中で２時間放置し、
その後６０℃の雰囲気中で２時間放置することを１サイ
クルとしてこれを繰り返し行い、この時のエポキシ樹脂
におけるクラックの発生と電解液の外部端子への這い上
がり状態を調べた。このヒートショック試験においてエ
ポキシ樹脂にクラックが発生した電池の個数と電解液が
外部端子まで這い上がった電池の個数を（表１）に示し
た。A heat shock test was performed using the present invention and a conventional sealed lead-acid battery. In the heat shock test, the battery was left in an atmosphere at −40 ° C. for 2 hours,
Thereafter, this was repeated as one cycle of leaving the substrate in an atmosphere of 60 ° C. for 2 hours, and the occurrence of cracks in the epoxy resin and the creeping state of the electrolytic solution to the external terminals were examined. Table 1 shows the number of batteries in which cracks occurred in the epoxy resin and the number of batteries in which the electrolyte solution crawled up to the external terminals in the heat shock test.
【００１８】[0018]
【表１】 [Table 1]
【００１９】（表１）に示したように従来の密閉型鉛蓄
電池では、エポキシ樹脂にクラックが発生した電池が５
個あり、電解液が外部端子まで這い上がった電池が３個
あった。しかし、本発明の密閉型鉛蓄電池では、エポキ
シ樹脂にクラックは発生しなく、クラックを経て電解液
が外部端子まで這い上がる電池は無かった。As shown in Table 1, in conventional sealed lead-acid batteries, five batteries having cracks in the epoxy resin
There were three batteries in which the electrolyte had crawled up to the external terminals. However, in the sealed lead-acid battery of the present invention, no crack was generated in the epoxy resin, and there was no battery in which the electrolytic solution crawled up to the external terminal via the crack.
【００２０】次に、上記と同様の本発明と従来の密閉型
鉛蓄電池を１０個ずつ作製し、電池の外部端子のあるコ
ーナー部を２０cmの高さから、かしの木の台上に落下さ
せる落下試験を行った。この落下試験によりエポキシ樹
脂にクラックが発生した電池の個数を（表２）に示し
た。Next, the same sealed lead-acid batteries of the present invention and the conventional one as described above were manufactured ten by ten, and the corners having the external terminals of the batteries were dropped from a height of 20 cm onto the oak tree stand. A drop test was conducted. Table 2 shows the number of batteries in which cracks occurred in the epoxy resin by the drop test.
【００２１】[0021]
【表２】 [Table 2]
【００２２】（表２）に示したように、従来の密閉型鉛
蓄電池ではクラックが発生した電池が５個あったが、本
発明の密閉型鉛蓄電池ではクラックが発生した電池は無
かった。As shown in Table 2, there were five cracked batteries in the conventional sealed lead-acid battery, but no cracked batteries in the sealed lead-acid battery of the present invention.
【００２３】以上の結果から、本発明の密閉型鉛蓄電池
では、熱的ショックや衝撃によるショックによるクラッ
クの発生を防止することができる。From the above results, the sealed lead-acid battery of the present invention can prevent the occurrence of cracks due to thermal shock or shock due to impact.
【００２４】[0024]
【発明の効果】以上のように、本発明の密閉型鉛蓄電池
は、蓋の所定の位置に設けたくぼみ内において、一方の
端部に上部方向へ突出する外部端子を有する鉛合金製の
Ｌ字形ブッシングをその他方の端部で電槽内部より導出
した正，負極の極柱と溶接し、ブッシングの周囲にエポ
キシ樹脂を充填する際、前記Ｌ字形ブッシングの外部端
子と極柱溶接部との間がくびれているので、このくびれ
部分でエポキシ樹脂の硬化時の内部応力を緩和すること
ができ、エポキシ樹脂内部でのクラックの発生を防止す
ることができる。As described above, the sealed lead-acid battery according to the present invention is a lead alloy L-type battery having an external terminal projecting upward at one end in a recess provided at a predetermined position of a lid. At the other end, the L-shaped bushing is welded to the positive and negative electrode poles led out of the battery case, and when the bushing is filled with epoxy resin, the outer terminal of the L-shaped bushing is welded to the pole welding portion. Since the space is narrowed, the internal stress at the time of curing the epoxy resin can be reduced at the narrowed portion, and the occurrence of cracks inside the epoxy resin can be prevented.
【００２５】したがって、エポキシ樹脂内部でのクラッ
クの発生による電解液のクリーピングのない密閉型鉛蓄
電池を提供することができる。Therefore, it is possible to provide a sealed lead-acid battery which does not creep the electrolytic solution due to the occurrence of cracks inside the epoxy resin.
【図１】（Ａ）本発明の密閉型鉛蓄電池の外部端子部分
の上面図 （Ｂ）同外部端子部分のＡ−Ａ′線に沿った断面図FIG. 1A is a top view of an external terminal portion of a sealed lead-acid battery of the present invention. FIG. 1B is a cross-sectional view of the external terminal portion taken along line AA ′.
【図２】（Ａ）従来の密閉型鉛蓄電池の外部端子部分の
上面図 （Ｂ）同外部端子部分のＢ−Ｂ′線に沿った断面図FIG. 2A is a top view of an external terminal portion of a conventional sealed lead-acid battery. FIG. 2B is a cross-sectional view of the external terminal portion taken along line BB ′.
１ 蓋 ２ 極柱 ３ 外部端子 ４ 従来のブッシング ４ａ 本発明のブッシング ５ ポット部分 ６ エポキシ樹脂 REFERENCE SIGNS LIST 1 lid 2 pole 3 external terminal 4 conventional bushing 4 a bushing of the present invention 5 pot portion 6 epoxy resin
フロントページの続き (56)参考文献 実開 昭60−51872（ＪＰ，Ｕ) 実開 昭59−165664（ＪＰ，Ｕ) 実公 昭40−31876（ＪＰ，Ｙ１) (58)調査した分野(Int.Cl.7，ＤＢ名) H01M 2/06 - 2/08 H01M 10/12 Continuation of the front page (56) References Japanese Utility Model Showa 60-51872 (JP, U) Japanese Utility Model Showa 59-165664 (JP, U) Japanese Utility Model Showa 40-31876 (JP, Y1) (58) Fields investigated (Int) .Cl. 7 , DB name) H01M 2/06-2/08 H01M 10/12
Claims (1)
を有する鉛合金製のＬ字形ブッシングを、その他方の端
部で電槽内部より導出した正，負極の極柱と溶接し、こ
のブッシングの周囲にエポキシ樹脂を充填した密閉型鉛
蓄電池で、前記Ｌ字形ブッシングは、外部端子と極柱溶
接部との間がくびれている密閉型鉛蓄電池。1. A lead alloy L-shaped bushing having an external terminal projecting upward at one end is welded to the positive and negative poles drawn out of the battery container at the other end. A sealed lead-acid battery in which an epoxy resin is filled around the bushing, wherein the L-shaped bushing is a sealed lead-acid battery in which a gap between an external terminal and a pole welding portion is narrowed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04014563A JP3127545B2 (en) | 1992-01-30 | 1992-01-30 | Sealed lead-acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04014563A JP3127545B2 (en) | 1992-01-30 | 1992-01-30 | Sealed lead-acid battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05205710A JPH05205710A (en) | 1993-08-13 |
| JP3127545B2 true JP3127545B2 (en) | 2001-01-29 |
Family
ID=11864628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04014563A Expired - Fee Related JP3127545B2 (en) | 1992-01-30 | 1992-01-30 | Sealed lead-acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3127545B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5525904B2 (en) * | 2010-04-28 | 2014-06-18 | 日立ビークルエナジー株式会社 | Secondary battery |
| JP5352843B1 (en) | 2013-03-12 | 2013-11-27 | ケイテクエンジニアリング株式会社 | Method for improving the performance of stationary lead-acid batteries |
| JPWO2016013163A1 (en) * | 2014-07-23 | 2017-04-27 | 株式会社Ｇｓユアサ | Lead acid battery |
-
1992
- 1992-01-30 JP JP04014563A patent/JP3127545B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05205710A (en) | 1993-08-13 |
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| LAPS | Cancellation because of no payment of annual fees |