JP3309694B2 - Sealed lead-acid battery - Google Patents

Sealed lead-acid battery

Info

Publication number
JP3309694B2
JP3309694B2 JP04159096A JP4159096A JP3309694B2 JP 3309694 B2 JP3309694 B2 JP 3309694B2 JP 04159096 A JP04159096 A JP 04159096A JP 4159096 A JP4159096 A JP 4159096A JP 3309694 B2 JP3309694 B2 JP 3309694B2
Authority
JP
Japan
Prior art keywords
bushing
ring
resin
battery
electrode plate
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 - Lifetime
Application number
JP04159096A
Other languages
Japanese (ja)
Other versions
JPH09237615A (en
Inventor
明俊 平松
亮 岩村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Panasonic Holdings Corp
Original Assignee
Panasonic Corp
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Panasonic Corp, Matsushita Electric Industrial Co Ltd filed Critical Panasonic Corp
Priority to JP04159096A priority Critical patent/JP3309694B2/en
Publication of JPH09237615A publication Critical patent/JPH09237615A/en
Application granted granted Critical
Publication of JP3309694B2 publication Critical patent/JP3309694B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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

  • Connection Of Batteries Or Terminals (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Secondary Cells (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【産業上の利用分野】本発明は、密閉型鉛蓄電池におけ
るブッシングの封口構造の改良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 a sealing structure of a bushing in a sealed lead-acid battery.

【０００２】[0002]

【従来の技術】一般的な密閉型鉛蓄電池において、電槽
と蓋体とは同じ材料が用いられ、熱溶着されている。蓋
体には、極柱の貫通する部分と注液（排気）口とが開け
られており、これらの孔からの漏液が問題となってい
る。2. Description of the Related Art In a general sealed lead-acid battery, the same material is used for a battery case and a lid, and they are thermally welded. The cover has a portion through which the poles penetrate and a liquid injection (exhaust) port, and leakage from these holes is a problem.

【０００３】このうち、極柱の貫通する部分を液密に保
つには、（ａ）あらかじめ蓋体に鉛ブッシングを埋め込
んで成形しておき、極柱をこれに溶接する方法、（ｂ）
蓋体、または極柱に設けたねじによりゴムパッキンを締
め付ける方法、（ｃ）極柱の周囲の凹所にアスファルト
または合成樹脂コンパウンドを注入固化させる方法など
が考えられている。Of these, in order to maintain the portion through which the pole is penetrated in a liquid-tight manner, (a) a method in which a lead bushing is buried in the lid in advance and molded, and the pole is welded to this;
A method of tightening the rubber packing with a screw provided on the cover or the pole, and (c) a method of injecting and solidifying asphalt or a synthetic resin compound into a recess around the pole and the like have been considered.

【０００４】このうち、（ａ）の方法を用いた場合、樹
脂成形によって作製された蓋体にインサートされたブッ
シングの周りにエポキシ樹脂等の接着剤を充填してお
り、ブッシングとふたとの境界面にできるわずかな隙間
を接着封止していた。When the method (a) is used, an adhesive such as an epoxy resin is filled around a bushing inserted into a lid formed by resin molding, and a boundary between the bushing and the lid is formed. A slight gap formed on the surface was sealed and sealed.

【０００５】[0005]

【発明が解決しようとする課題】しかし、このような構
成とした場合、ブッシング、端子、蓋体、そして、接着
剤の材質の収縮率がそれぞれ異なるため、温度条件の激
しい雰囲気下での電池使用では、材料に歪みがおこり、
隙間、クラック（割れ）等の原因となる。したがって、
密着性を上げる（隙間を最小限に抑えるため）ために、
ふたの樹脂成形条件はかなり限定されていた。However, in such a configuration, since the shrinkage rates of the materials of the bushing, the terminal, the lid, and the adhesive are different from each other, the battery cannot be used in an atmosphere having severe temperature conditions. Then, distortion occurs in the material,
It causes gaps, cracks, and the like. Therefore,
To increase the adhesion (to minimize the gap)
The resin molding conditions for the lid were quite limited.

【０００６】また、ブッシングと極柱の溶接時におい
て、ブッシング周囲の蓋体の樹脂材料に熱が伝わり、材
料収縮率の違いによって、ブッシングと蓋体との境目に
おいて隙間が発生する。この隙間を通じて、電池内部に
おける硫酸分が極柱（ストラップ）を伝って、漏洩（液
密不良）が発生する。これにより、電池端子は硫酸によ
って腐食され、ひどい場合には、端子と配線されている
ターミナルも硫酸によって、断線するおそれがある。Further, when the bushing and the pole are welded, heat is transmitted to the resin material of the lid around the bushing, and a gap is generated at the boundary between the bushing and the lid due to a difference in the material shrinkage. Through this gap, the sulfuric acid inside the battery travels along the pole (strap), causing leakage (poor liquid tightness). As a result, the battery terminals are corroded by the sulfuric acid, and in severe cases, the terminals connected to the terminals may be disconnected by the sulfuric acid.

【０００７】また、外部との気密も破られ、極端な気密
の漏れがある場合、電池内部の水分蒸発により電解液比
重と極板の活物質利用率が上がり、極板に負担となり、
極板寿命、電池寿命を短くしてしまっていた。Further, when the airtightness with the outside is broken and there is an extreme airtight leak, the specific gravity of the electrolytic solution and the utilization rate of the active material of the electrode plate increase due to the evaporation of water inside the battery.
The electrode plate life and battery life were shortened.

【０００８】本発明は、このような課題を解決するもの
で、電池端子部における液密、気密不良を防止した密閉
型鉛蓄電池を提供することを目的とする。An object of the present invention is to solve such a problem, and an object of the present invention is to provide a sealed lead-acid battery in which liquid-tightness and air-tightness in a battery terminal portion are prevented.

【０００９】[0009]

【課題を解決するための手段】上記目的を達成するため
に本発明は、樹脂からなる蓋体と、極板群から外部への
導通のためのブッシングをともにインサート樹脂成型
し、ブッシングの樹脂接触面の外周に少なくとも一列の
溝部を設け、前記溝部に弾性体であるOリングを装着し
た構成である。この構成により、Oリング表面は成型時
の樹脂温度により軟化、あるいは融解され、樹脂とOリ
ングは強固に密着した状態となる。また、射出圧力によ
りＯリングは非常に圧縮され、ブッシングとＯリングは
より密着した状態となる。その結果、ブッシングと極柱
の溶接時の熱による材料収縮、膨張によって発生する隙
間を、Oリングの弾性体特性（膨張、収縮）により防止
することができる。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a cover made of resin and a bushing for conducting from the electrode plate group to the outside, both of which are formed by insert resin molding, and the resin contact of the bushing is performed. At least one row
In this configuration, a groove is provided, and an O-ring, which is an elastic body, is attached to the groove . With this configuration, the surface of the O-ring is softened or melted depending on the temperature of the resin at the time of molding, and the resin and the O-ring are in a state of being in tight contact with each other. Further, the O-ring is extremely compressed by the injection pressure, and the bushing and the O-ring are brought into a more closely contacted state. As a result, it is possible to prevent a gap generated due to material contraction and expansion due to heat at the time of welding the bushing and the pole due to the elastic body characteristics (expansion and contraction) of the O-ring.

【００１０】また、Ｏリングには撥水剤を塗布、あるい
は、含浸させる構成とすることにより、水分は元より、
特に硫酸分の漏洩を防止することができる。[0010] Further, by applying or impregnating a water-repellent agent to the O-ring, moisture can be reduced from the origin.
Particularly, leakage of sulfuric acid can be prevented.

【００１１】[0011]

【発明の実施の形態】以下、本発明の一つの実施の形態
について、図面を参照しながら説明する。図１は本実施
例における密閉型鉛蓄電池の端子部の断面図を示すもの
である。外部への出力端子である黄銅からなるボルト１
と、鉛合金からなる極柱２を受ける空洞部３を有した鉛
合金からなるブッシング４があって、この空洞部３にお
いて極中２と溶融し一体化される。このブッシング４の
空洞部３を囲う周壁の外周には、凹部５が２列設けられ
ている。この２列の凹部５の内、極柱２を挿入する空洞
部３の開口部に近接する凹部５には、図３に示すような
ネオプレンゴム（ＣＲ）からなるＯリング６が装着され
ている。このとき、凹部５の幅をａ、凹部５の底におけ
る空洞部３を囲う周壁の外周径をｂ、Ｏリング６の線径
をｃ、内径をｄとすると、ａよりｃを大きく、ｂよりｄ
を小さくしている。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of a terminal portion of a sealed lead-acid battery according to this embodiment. Bolt 1 made of brass, which is an output terminal to the outside
And a bushing 4 made of a lead alloy having a cavity 3 for receiving the pole 2 made of a lead alloy. In the cavity 3, the core 2 is melted and integrated. Two rows of concave portions 5 are provided on the outer periphery of a peripheral wall surrounding the hollow portion 3 of the bushing 4. An O-ring 6 made of neoprene rubber (CR) as shown in FIG. 3 is mounted in the recess 5 near the opening of the cavity 3 into which the pole 2 is inserted, of the two rows of recesses 5. . At this time, if the width of the recess 5 is a, the outer diameter of the peripheral wall surrounding the cavity 3 at the bottom of the recess 5 is b, the wire diameter of the O-ring 6 is c, and the inner diameter is d, c is larger than a and b is larger than b. d
Is smaller.

【００１２】次に、ポリプロピレン（以下、ＰＰと表記
する）からなる蓋体７の成形加工時にブッシング４をイ
ンサート樹脂成形する。成形条件としては、成形機のシ
リンダー（樹脂）温度は２００〜２５０℃、射出（ゲー
ジ）圧力は５０〜６０ｋｇ／ｃｍ2であり、通常の蓋成
形時の条件と同じである。この場合、樹脂温度によって
樹脂の流動性が決まり、射出圧力によってＯリング６を
圧縮する力が決まり、ブッシング４とＯリング６と蓋７
との密着性に影響する。この時、Ｏリング６は成形前寸
法より約２０〜３０％の変形率に設定すればよい。な
お、Ｏリング６の表面にはパラフィンオイル８を付着さ
せ、撥水性を付与している。Next, the bushing 4 is formed by insert resin molding at the time of forming the cover 7 made of polypropylene (hereinafter, referred to as PP). The molding conditions are as follows: the cylinder (resin) temperature of the molding machine is 200 to 250 ° C., and the injection (gauge) pressure is 50 to 60 kg / cm 2, which is the same as the condition for normal lid molding. In this case, the fluidity of the resin is determined by the resin temperature, the force for compressing the O-ring 6 is determined by the injection pressure, and the bushing 4, the O-ring 6, and the lid 7 are formed.
Affects the adhesion. At this time, the O-ring 6 may be set to a deformation ratio of about 20 to 30% from the dimension before molding. Note that paraffin oil 8 is attached to the surface of the O-ring 6 to impart water repellency.

【００１３】本実施例においては、凹部５を２列設けた
が、１列としても、また３列以上としてもよい。また、
ボルト１は黄銅を用いたがステンレススチール等を用い
ても同様である。In this embodiment, two rows of the concave portions 5 are provided. However, one row may be provided, or three or more rows may be provided. Also,
Although the bolt 1 is made of brass, the same applies when stainless steel or the like is used.

【００１４】次に、電池を組み立てる場合において、蓋
７と同じ材質（ＰＰ）からなる電槽９（図示せず）と蓋
７とを熱溶着した後、極柱２をブッシング４の開口部に
挿入し、それぞれバーナー溶接により接合する。その
後、極柱２とブッシング４の溶接部の上部にはＰＰから
なる端子カバー１０を熱溶着する。Next, in assembling the battery, a battery case 9 (not shown) made of the same material (PP) as the lid 7 and the lid 7 are heat-welded, and then the pole 2 is inserted into the opening of the bushing 4. Insert and join each by burner welding. Thereafter, a terminal cover 10 made of PP is heat-welded to the upper part of the weld between the pole 2 and the bushing 4.

【００１５】図４は、本発明の他の実施の形態であり、
ボルト１と極柱２とが上下に配されている樹脂ブッシン
グ部を示している。極柱２の外周には前記した実施の形
態と同様の凹部５を設け、Ｏリング６を下部凹部５に装
着している。この樹脂ブッシング１１には、極柱２がイ
ンサート樹脂成形されている。このような構成の樹脂ブ
ッシング１１を蓋７と熱溶着する。その後、蓋７と電槽
（図示せず）の上部開口部とを熱溶着し、密閉する。こ
の極柱２の先端にはボルト１がバーナー溶接されてい
る。FIG. 4 shows another embodiment of the present invention.
3 shows a resin bushing portion in which bolts 1 and poles 2 are arranged vertically. A concave portion 5 similar to that of the above-described embodiment is provided on the outer periphery of the pole 2, and an O-ring 6 is attached to the lower concave portion 5. The pole 2 is formed by insert resin molding in the resin bushing 11. The resin bushing 11 having such a configuration is thermally welded to the lid 7. Thereafter, the lid 7 and the upper opening of the battery case (not shown) are heat-sealed and sealed. A bolt 1 is burner-welded to the tip of the pole 2.

【００１６】図５は本発明の他の実施の形態を示すもの
であり、例えば自動車用スタータバッテリーのテーパ端
子部を示すものである。まず、空洞部３を有したブッシ
ング４の外周に二列からなる凹部５を設け、Ｏリング６
を下部凹部５に装着し、蓋７の成形加工時にブッシング
４をインサート樹脂成形する。次に、電池組み立て時に
おいて極柱２はブッシング４の開口部に挿入され、それ
ぞれバーナー溶接により接合される。FIG. 5 shows another embodiment of the present invention, for example, showing a tapered terminal portion of an automobile starter battery. First, two rows of recesses 5 are provided on the outer periphery of a bushing 4 having a cavity 3 and an O-ring 6 is provided.
Is mounted in the lower concave portion 5, and the bushing 4 is formed by insert resin molding when the cover 7 is formed. Next, at the time of assembling the battery, the pole 2 is inserted into the opening of the bushing 4 and joined by burner welding.

【００１７】図６は本発明の形態と従来の鉛蓄電池にお
ける、液密不良率と蓋成型時の射出圧力との関係を示す
図である。本実験では、液密性を確認するために、雰囲
気温度７０℃、電池電圧１３．６Ｖにおける定電圧トリ
クル加速試験を行った。この図に示されるように、本実
施例、従来例ともに射出圧力を高く設定すると不良率が
少なくなる傾向はあるが、Ｏリングをとりつけた本実施
例では射出圧力はそれほど不良率に影響しなくなり、射
出圧力を低いものから高いものまで、幅広くとれること
がわかる。FIG. 6 is a diagram showing the relationship between the liquid-tight defect rate and the injection pressure at the time of lid molding in the embodiment of the present invention and a conventional lead-acid battery. In this experiment, a constant voltage trickle acceleration test was performed at an ambient temperature of 70 ° C. and a battery voltage of 13.6 V in order to confirm liquid tightness. As shown in this figure, when the injection pressure is set high in this embodiment and the conventional example, the defect rate tends to decrease, but in the embodiment in which the O-ring is attached, the injection pressure does not significantly affect the defect rate. It can be seen that the injection pressure can be widened from low to high.

【００１８】図７は本実施例における凹部５の幅ａに対
するＯリング６の線径ｃの割合と、液密不良率との関係
を示す図である。本実験では、液密性を確認するため
に、雰囲気温度７０℃、電池電圧１３．６Ｖにおける定
電圧トリクル加速試験を行った。この図に示されるよう
に、ａ／ｃがＯ．７０以下では装着の作業性が悪く、Ｏ
リングの一部がはみ出し、完全に装着できないために、
ブッシング４とＯリング６と蓋７の間の密着性が悪くな
ってしまう。また、ａ／ｃが１．００以上ではＯリング
６の線径ｃが凹部の幅ａに比べ小さくなり過ぎ、ＰＰ樹
脂とブッシング４との間に隙間が発生してしまい、不良
率が増加していることがわかる。したがって、Ｏリング
６の成形時における圧縮（１０〜２０％）を考慮した場
合、凹部５の幅ａとＯリングの線径ｃの比率ａ／ｃは
０．７０から１．００までが良いと考えられる。FIG. 7 is a diagram showing the relationship between the ratio of the wire diameter c of the O-ring 6 to the width a of the recess 5 in this embodiment and the liquid-tight defect rate. In this experiment, a constant voltage trickle acceleration test was performed at an ambient temperature of 70 ° C. and a battery voltage of 13.6 V in order to confirm liquid tightness. As shown in this figure, a / c is O.D. If it is less than 70, the mounting workability is poor,
Because part of the ring protrudes and cannot be completely attached,
Adhesion between the bushing 4, the O-ring 6, and the lid 7 is deteriorated. Further, when a / c is 1.00 or more, the wire diameter c of the O-ring 6 becomes too small compared to the width a of the concave portion, a gap is generated between the PP resin and the bushing 4, and the defective rate increases. You can see that it is. Therefore, when the compression (10 to 20%) at the time of molding the O-ring 6 is considered, the ratio a / c of the width a of the recess 5 to the wire diameter c of the O-ring is preferably 0.70 to 1.00. Conceivable.

【００１９】図８は本実施例における凹部５の底におけ
る空洞部３を囲う周壁の外周径ｂに対するＯリングの内
径ｄの割合と、液密不良率との関係を示す図である。本
実験では、液密性を確認するために、雰囲気温度７０
℃、電池電圧１３．６Ｖにおける定電圧トリクル加速試
験を行った。この図に示されるように、比率ｄ／ｂが
１．００以上ではＯリング６の伸びが働かず、ブッシン
グ４との密着性不足により不良率が増加していくことが
わかる。したがって、より密着性を上げるには凹部５の
底における空洞部３を囲う周壁の外周径ｂをＯリング６
の内径ｄより大きくする必要がある。また、Ｏリング６
の伸び（２０〜３０％）とブッシング４への取り付け作
業を考慮すると、ｄ／ｂの比率は０．８０までが良いと
考えられる。FIG. 8 is a diagram showing the relationship between the ratio of the inner diameter d of the O-ring to the outer diameter b of the peripheral wall surrounding the hollow portion 3 at the bottom of the concave portion 5 and the liquid-tight failure rate in the present embodiment. In this experiment, in order to confirm the liquid tightness, the ambient temperature was set to 70.
C. and a constant voltage trickle acceleration test at a battery voltage of 13.6 V was performed. As shown in this figure, when the ratio d / b is 1.00 or more, the O-ring 6 does not work, and the defective rate increases due to insufficient adhesion with the bushing 4. Therefore, in order to further improve the adhesion, the outer diameter b of the peripheral wall surrounding the hollow portion 3 at the bottom of the concave portion 5 is changed to the O-ring 6.
Must be larger than the inner diameter d. O-ring 6
Considering the elongation (20 to 30%) and the work of attaching to the bushing 4, it is considered that the ratio of d / b is preferably up to 0.80.

【００２０】さらに、本実施例のような構成とすること
によって、漏液防止策として講じてきたアスファルトま
たは合成樹脂コンパウンドを注入固化することなく、こ
れらと同様の効果が得られ、工数面、材料費とも低減で
き、安価な密閉型鉛蓄電池として多大な効果を発揮でき
るものである。Further, by adopting the structure as in the present embodiment, the same effects as those described above can be obtained without injecting and solidifying the asphalt or synthetic resin compound which has been taken as a measure for preventing liquid leakage. The cost can be reduced, and a great effect can be exhibited as an inexpensive sealed lead storage battery.

【００２１】また、従来用いられているような接着剤を
使用した場合、樹脂のリサイクル時に異樹脂（接着剤）
が混入して、グレードの低い再生樹脂しか得られなかっ
たが、本実施例によれば異樹脂混入を最小限に抑えら
れ、再生樹脂グレードの向上を図ることができる。When a conventional adhesive is used, a different resin (adhesive) is used when recycling the resin.
Was mixed, and only a low-grade recycled resin was obtained. However, according to the present embodiment, the mixing of different resins can be minimized, and the recycled resin grade can be improved.

【００２２】[0022]

【発明の効果】以上の説明から明らかなように、弾性体
であるＯリングを装着したブッシングとともに蓋体をイ
ンサート樹脂成型することにより、樹脂成形条件（射出
圧力）の範囲をより広くとることができ、ブッシングと
極柱の溶接時に熱による樹脂収縮を防ぐことができる。
よって、端子部の外周部における液密性を確実に向上さ
せることができ、電池内部からの硫酸分の漏洩を防ぐこ
とができるため、端子の腐食防止を図ることができるも
のである。As is clear from the above description, the range of resin molding conditions (injection pressure) can be broadened by insert resin molding of the lid together with the bushing on which the O-ring, which is an elastic body, is mounted. It is possible to prevent resin shrinkage due to heat when welding the bushing and the pole.
Therefore, the liquid tightness at the outer peripheral portion of the terminal portion can be reliably improved, and leakage of sulfuric acid from inside the battery can be prevented, so that corrosion of the terminal can be prevented.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の一実施例における密閉型鉛蓄電池の端
子部の断面図FIG. 1 is a sectional view of a terminal portion of a sealed lead-acid battery according to an embodiment of the present invention.

【図２】本実施例におけるブッシング４の空洞部３を囲
う周壁の断面図FIG. 2 is a cross-sectional view of a peripheral wall surrounding a hollow portion 3 of a bushing 4 in the present embodiment.

【図３】本実施例におけるＯリング６を示す図FIG. 3 is a view showing an O-ring 6 in the embodiment.

【図４】本発明の他の実施例における端子部の断面図FIG. 4 is a sectional view of a terminal according to another embodiment of the present invention.

【図５】本発明の他の実施例における端子部の断面図FIG. 5 is a sectional view of a terminal portion according to another embodiment of the present invention.

【図６】蓋成形時の射出圧力と液密不良率の関係を示す
図FIG. 6 is a diagram showing a relationship between an injection pressure and a liquid-tight defect rate during lid molding.

【図７】ａ／ｃと液密不良率の関係を示す図FIG. 7 is a diagram showing a relationship between a / c and a liquid-tight defect rate.

【図８】ｄ／ｂと液密不良率の関係を示す図FIG. 8 is a diagram showing a relationship between d / b and a liquid-tight defect rate.

【符号の説明】[Explanation of symbols]

１ ボルト ２ 極柱 ３ 空洞部 ４ ブッシング ５ 凹部 ６ Ｏリング ７ 蓋 Reference Signs List 1 bolt 2 pole 3 cavity 4 bushing 5 recess 6 O-ring 7 lid

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平６−20663（ＪＰ，Ａ) 特開 昭63−264861（ＪＰ，Ａ) 特開 昭52−70336（ＪＰ，Ａ) 実開 平３−112866（ＪＰ，Ｕ) 特公 平１−24343（ＪＰ，Ｂ２) (58)調査した分野(Int.Cl.7，ＤＢ名) H01M 2/02 - 2/08 H01M 2/20 - 2/34 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-6-20663 (JP, A) JP-A-63-264861 (JP, A) JP-A-52-70336 (JP, A) 112866 (JP, U) JP 1-24343 (JP, B2) (58) Fields surveyed (Int. Cl. 7 , DB name) H01M 2/02-2/08 H01M 2/20-2/34

Claims (5)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】正極板、負極板およびセパレータとからな
る極板群と、電解液を内部に収納した電槽と、この電槽
の開口部を密閉する蓋体とからなる鉛蓄電池であって、
前記蓋体は樹脂であり、極板群から外部への導通のため
のブッシングとともにインサート樹脂成型され、前記ブ
ッシングの樹脂接触面の外周には少なくとも一列の溝部
が設けられ、前記溝部には弾性体であるＯリングが装着
されていることを特徴とする密閉型鉛蓄電池。1. A lead storage battery comprising: an electrode group consisting of a positive electrode plate, a negative electrode plate, and a separator; a battery case containing an electrolytic solution therein; and a lid sealing an opening of the battery case. ,
The lid is a resin, is insert-resin-molded together with a bushing for conducting from the electrode plate group to the outside, and at least one row of grooves is provided on the outer periphery of the resin contact surface of the bushing, and the groove has an elastic body. A sealed lead-acid battery characterized by being fitted with an O-ring. 【請求項２】正極板、負極板およびセパレータとからな
る極板群と、電解液を内部に収納した電槽と、この電槽
の開口部を密閉する蓋体とからなる鉛蓄電池であって、
前記蓋体は樹脂であり、極板群から外部への導通のため
の極柱とともにインサート樹脂成型され、前記極柱の外
周には少なくとも一列の溝部が設けられ、前記溝部には
弾性体であるＯリングが装着されていることを特徴とす
る密閉型鉛蓄電池。2. A lead storage battery comprising: an electrode plate group including a positive electrode plate, a negative electrode plate, and a separator; a battery case containing an electrolytic solution therein; and a lid sealing an opening of the battery case. ,
The lid body is made of resin, and is insert-resin-molded together with the pole for conduction from the electrode plate group to the outside. At least one row of grooves is provided on the outer periphery of the pole, and the groove is an elastic body. A sealed lead-acid battery having an O-ring mounted thereon. 【請求項３】ブッシングに設けた溝部の幅は、Ｏリング
の外径よりも小さいことを特徴とする請求項１記載の密
閉型鉛蓄電池。3. A width of the groove formed in the bushing, sealed lead-acid battery of claim 1 Symbol placement, wherein smaller than the outer diameter of the O-ring. 【請求項４】溝部の底におけるブッシングの外形が、Ｏ
リングの内径よりも大きいことを特徴とする請求項１記
載の密閉型鉛蓄電池。4. The bushing at the bottom of the groove has an outer shape of O.
The sealed lead-acid battery according to claim 1 , wherein the sealed lead-acid battery is larger than an inner diameter of the ring. 【請求項５】Ｏリングには、撥水剤が塗布あるいは含浸
されていることを特徴とする請求項１または２記載の密
閉型鉛蓄電池。5. The sealed lead-acid battery according to claim 1, wherein the O-ring is coated or impregnated with a water repellent.
JP04159096A 1996-02-28 1996-02-28 Sealed lead-acid battery Expired - Lifetime JP3309694B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP04159096A JP3309694B2 (en) 1996-02-28 1996-02-28 Sealed lead-acid battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP04159096A JP3309694B2 (en) 1996-02-28 1996-02-28 Sealed lead-acid battery

Publications (2)

Publication Number Publication Date
JPH09237615A JPH09237615A (en) 1997-09-09
JP3309694B2 true JP3309694B2 (en) 2002-07-29

Family

ID=12612646

Family Applications (1)

Application Number Title Priority Date Filing Date
JP04159096A Expired - Lifetime JP3309694B2 (en) 1996-02-28 1996-02-28 Sealed lead-acid battery

Country Status (1)

Country Link
JP (1) JP3309694B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7479349B2 (en) * 2002-12-31 2009-01-20 Cardiac Pacemakers, Inc. Batteries including a flat plate design
US8701743B2 (en) 2004-01-02 2014-04-22 Water Gremlin Company Battery parts and associated systems and methods
JP5521279B2 (en) * 2008-04-25 2014-06-11 株式会社Ｇｓユアサ Storage battery
BRPI0907551B1 (en) 2008-04-25 2019-07-09 Gs Yuasa International Ltd STORAGE BATTERY
EP2425478B1 (en) 2009-04-30 2018-10-31 Water Gremlin Company Battery parts having retaining and sealing features and associated methods of manufacture and use
CN102104135A (en) * 2009-12-18 2011-06-22 上海海宝特种电源有限公司 Combined tab
US9748551B2 (en) 2011-06-29 2017-08-29 Water Gremlin Company Battery parts having retaining and sealing features and associated methods of manufacture and use
US9954214B2 (en) 2013-03-15 2018-04-24 Water Gremlin Company Systems and methods for manufacturing battery parts
JP6720547B2 (en) 2016-01-18 2020-07-08 株式会社Ｇｓユアサ Power storage device
US11283141B2 (en) 2018-12-07 2022-03-22 Water Gremlin Company Battery parts having solventless acid barriers and associated systems and methods

Also Published As

Publication number Publication date
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