JPS5994365A - Battery jar cover for lead storage battery - Google Patents
Battery jar cover for lead storage batteryInfo
- Publication number
- JPS5994365A JPS5994365A JP57204043A JP20404382A JPS5994365A JP S5994365 A JPS5994365 A JP S5994365A JP 57204043 A JP57204043 A JP 57204043A JP 20404382 A JP20404382 A JP 20404382A JP S5994365 A JPS5994365 A JP S5994365A
- Authority
- JP
- Japan
- Prior art keywords
- resistance
- thermoplastic resin
- battery case
- cover
- acid
- 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.)
- Pending
Links
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
- H01M50/30—Arrangements for facilitating escape of gases
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/394—Gas-pervious parts or elements
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、鉛蓄電池の構成部品の１つである電槽カバー
に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a battery case cover which is one of the components of a lead-acid battery.
従来例の構成とその問題点
一般に鉛蓄電池は、使用中に発生する爆発性気体の排出
および温液を防止するため、電解液の注ることなく、半
密閉式となシ、その代りに第１図に示すような電槽カバ
−１自体に、気体の排出機能および温液防止機能を施す
ことがなされた。これは、セラミックス粒子あるいはプ
ラスチック粒子の焼結体４、またはセラミックス粒子と
プラスチック粒子とを適当な割合で混合した焼結体を電
槽カバ−１自体につめ込んで、一体化したものである。Conventional configurations and their problems In general, lead-acid batteries are semi-hermetic, without pouring electrolyte, to prevent the release of explosive gases and hot liquids generated during use. The battery case cover 1 itself as shown in FIG. 1 has been provided with a gas discharge function and a hot liquid prevention function. In this case, a sintered body 4 of ceramic particles or plastic particles, or a sintered body of a mixture of ceramic particles and plastic particles in an appropriate ratio, is packed and integrated into the battery case cover 1 itself.
なお、２は端子、３は液栓を示す。Note that 2 indicates a terminal and 3 indicates a liquid stopper.
しかし、この焼結体４はその製造に大きな設備を要し、
コスト的にも高価でカバーのコスト高につながる。また
焼結体には、一般に平均孔径が３００μｍ前後のものが
使用されておシ、長期間自動車に装着し、悪路を走行す
ると、電解液が焼結体からにじみでることが多い。また
孔の中に粉じん等かつ１′り排気不良になった場合、内
圧の上昇によシ、電槽の破裂を生じることも多い。However, this sintered body 4 requires large equipment to manufacture.
It is also expensive and leads to high cover costs. Further, the sintered body generally has an average pore diameter of around 300 μm, and when the sintered body is mounted in a car for a long time and driven on rough roads, the electrolyte often oozes out from the sintered body. Furthermore, if there is dust or the like in the hole and the exhaust becomes insufficient, the internal pressure will rise and the battery case will often burst.
発明の目的
本発明は、電槽カバーを改善することで上記従来の欠点
を解消し、排気機能と耐溢液性に優れたカバーを提供す
ることを目的とする。OBJECTS OF THE INVENTION It is an object of the present invention to solve the above-mentioned conventional drawbacks by improving the battery case cover, and to provide a cover with excellent exhaust function and spill resistance.
発明の構成
すなわち、上記目的を達成するため、本発明は熱可塑性
樹脂からなるカバーの一部に、耐酸性。Structure of the Invention That is, in order to achieve the above object, the present invention provides a part of the cover made of thermoplastic resin that is acid-resistant.
耐酸化性および撥水性を有する熱可塑性樹脂からなる多
孔性膜を一体化したことを特徴としだものである。It is characterized by integrating a porous membrane made of a thermoplastic resin that is oxidation resistant and water repellent.
このように構成することで、コスト的に安価にできると
ともに、電池使用上において電解液が温液することなく
、発生する気体のみを排気させ、しかも多孔膜の使用に
よシ万−目づまシを生じても膜の部分のみが破裂し、電
池全体の破裂を防止する効果を有している。By configuring it in this way, it is possible to reduce the cost, and when using the battery, only the generated gas is exhausted without causing the electrolyte to become a hot liquid. Moreover, the use of a porous membrane eliminates the possibility of clogging. Even if this occurs, only the membrane portion will rupture, which has the effect of preventing the entire battery from rupturing.
実施例の説明
以下、本発明の実施例について、図面に基づいて説明す
る。DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described based on the drawings.
（実施例−１）
第２図に示すようにポリプロピレン製の電槽力／仁−１
の各セル室に対応する部分で、かつ注液口の近くに５懸
四方の穴を形成した。その後、ろ過膜として広く一般に
使用されている撥水性、耐酸化性てしかも耐酸性があシ
、まだ平均孔径が３０μｍの径をもつ二軸延伸製造方式
によるポリプロピレン製で厚み０．２Ｍの多孔性膜５を
熱溶着６によシ、第３図に示した様に穴をふさぐかたち
で、電槽カバーと一体化させた。(Example-1) As shown in FIG.
Five square holes were formed in the portion corresponding to each cell chamber and near the liquid injection port. After that, it was made of polypropylene, which is widely used as a filtration membrane, with water repellency, oxidation resistance, and acid resistance, and is made of polypropylene with a thickness of 0.2M using a biaxial stretching manufacturing method with an average pore size of 30 μm. The membrane 5 was thermally welded 6 and integrated with the battery case cover by sealing the hole as shown in FIG.
この電槽カバーを、Ｎ５４０Ｚ型蓄電池の電槽カバーと
して組込み、耐溢液性および排気特性について、テスト
を行なうため、凹凸のはげしい悪路における実車テスト
を行なった。その結果、従来の電槽カバー自体にセラミ
ック焼結体をうめ込んだものについては、電解液が焼結
体よりにじみ出ていたが、本発明の電槽カバーについて
は、電解液のにじみはみられず、耐溢液性が優れている
ことが判明した。また、排気効果についても電槽の異常
はみられず、充分な効果のあることを示した。This battery case cover was incorporated as a battery case cover of the N540Z type storage battery, and an actual vehicle test was conducted on a rough road with extremely uneven surfaces in order to test its overflow resistance and exhaust characteristics. As a result, in the case of a conventional battery case cover in which a ceramic sintered body was embedded, the electrolyte oozed out from the sintered body, but with the battery case cover of the present invention, no bleeding of electrolyte was observed. It was found that the liquid overflow resistance was excellent. In addition, no abnormality was observed in the battery case regarding the exhaust effect, indicating that it was sufficiently effective.
上記に述べた膜と同一の厚さで孔を有しない膜を、上記
の様にして電槽カバーに一体化させ、それをＮ５４０Ｚ
形鉛蓄電池に組込み、過充電をして気体を発生させてみ
た。その結果従来のセラミック焼結体を使用したものは
目づまシを生じた場合、内圧の上昇により電槽、電槽カ
バーが破裂し、電解液や破片が４〜５ｍ四方にわたって
飛び散るのに対し、本発明のものは、内圧上昇によシ多
孔性膜のみがふくれて破裂に至シ、少量の電解液が飛散
したのみで、他の部分については異常はみられず、安全
弁的な効果を示すことがわかった。A membrane with the same thickness and no holes as the membrane described above is integrated into the battery case cover as described above, and it is attached to the N540Z.
I installed it in a lead-acid battery and overcharged it to generate gas. As a result, if a conventional ceramic sintered body becomes clogged, the battery case and battery case cover will burst due to the increase in internal pressure, and the electrolyte and debris will be scattered over a 4 to 5 meter square area. In the case of the present invention, only the porous membrane swelled and ruptured due to the increase in internal pressure, and only a small amount of electrolyte was scattered, and no abnormality was observed in other parts, demonstrating the effect of a safety valve. I understand.
（実施例−２）
撥水性、耐酸化性でしかも耐酸性があシ、また平均孔径
が３０μｍの微孔をもつポリプロピレンるよう薄くした
膜を、実施伊ト１ と同じ様に電槽カバーに一体化し、
排気効果、耐温液効果について検討した。その結果実施
例−１と同様に、排気効果および耐温液効果が従来品よ
シ優れていることがわかった。また、多孔性膜が目づま
シを生じた場合、どの様になるかも実施例−１と同じ方
法で実施した。その結果、内圧の増加とともに膜９は第
５図のようにふくれ、その後中央部の膜の薄い部分子で
破裂する。しかし破裂後は第６図に示した様に、破裂の
除、厚みの厚い部分が伸び、その部分が８のように重シ
合って穴をふさぐ形となり、破裂後もそのまま使用でき
る状態となシ、安全弁的な機能を示した。実施例−１の
ものでは膜が破裂すると穴があくため使用には十分注意
が必要であるが、本実施例では破裂後も厚みの厚い部分
が穴をふさぐため、破裂後も心配なく使用できる。(Example 2) A thin polypropylene film that is water repellent, oxidation resistant, and acid resistant and has micropores with an average pore size of 30 μm was used as a battery case cover in the same manner as in Example 1. integrated,
The exhaust effect and temperature-resistant liquid effect were investigated. As a result, as in Example 1, it was found that the exhaust effect and the temperature liquid resistance effect were superior to the conventional product. Furthermore, the same method as in Example 1 was used to determine what would happen if the porous membrane became clogged. As a result, as the internal pressure increases, the membrane 9 swells as shown in FIG. 5, and then ruptures at the thinner part of the membrane at the center. However, after the rupture, as shown in Figure 6, the thicker part of the rupture stretches and overlaps as shown in Figure 8 to cover the hole, making it usable as is. It showed a safety valve-like function. In Example 1, when the membrane ruptures, a hole is created, so it is necessary to be careful when using it, but in this example, the thick part closes the hole even after the membrane ruptures, so it can be used without worry even after the rupture. .
膜の厚みおよび薄い膜の面積、薄い膜の厚みをさまざま
に変化させて試験したが、膜の厚さは浮下であれば、破
裂後も膜自体が穴をふさぐことがわかった。Tests were conducted by varying the thickness of the membrane, the area of the thin membrane, and the thickness of the thin membrane, and it was found that as long as the membrane was thin enough to float, the membrane itself would close the hole even after rupture.
以上、２つの実施例を述べたが、多孔性膜の孔径につい
て、平均孔径が５０μｍを超えると、耐溢液性が、従来
のセラミックスからなる焼結体をカバーと一体化したも
のと同程度になる。また平均孔径が１μｍ以下になると
、排気効果が著しく低下する結果が得られ、平均孔径は
５０μｍ〜１μｍが適切である。Two examples have been described above, but when the average pore diameter of the porous membrane exceeds 50 μm, the leakage resistance is comparable to that of a conventional ceramic sintered body integrated with the cover. become. Furthermore, when the average pore diameter is 1 μm or less, the exhaust effect is significantly reduced, and the appropriate average pore diameter is 50 μm to 1 μm.
この様に、本実施例によれば、大量生産されて、安価に
入手できる撥水性で、耐酸性、耐酸化性を有する熱可塑
性樹脂からなる多孔性膜を利用している点に特徴がある
。このような膜では電槽カバーへの一体化も特別な形状
をとることなく、浴着方法としては簡単な熱溶着あるい
は、超音阪溶着等でできるため、コスト的にも従来のも
のに比較し、安価にできる。また耐溢液性も従来のもの
より向上し、さらに多孔性膜が安全弁的な役割を有し、
電池の使用上においてもその安全性が向上する。As described above, this embodiment is characterized by the use of a porous membrane made of thermoplastic resin that is mass-produced and available at low cost and has water repellency, acid resistance, and oxidation resistance. . This kind of membrane can be integrated into the battery case cover without taking any special shape, and can be attached using simple heat welding or ultrasonic welding, so it is cost-effective compared to conventional ones. And it can be done cheaply. In addition, the spill resistance is improved compared to conventional ones, and the porous membrane acts as a safety valve.
The safety of the battery in use is also improved.
発明の効果
以上の様に本発明によれば、次の効果を得るととができ
る。Effects of the Invention As described above, according to the present invention, the following effects can be obtained.
（１） コスト的に、従来の焼結体を一体化させた電
槽カバーよシも安価にできる。(1) In terms of cost, it is possible to make a battery case cover that integrates a conventional sintered body at a low cost.
（２）耐溢液性が、従来のものよシ改善される。(2) The overflow resistance is improved compared to the conventional one.
（３）万一、目づ１シを生じても膜の部分のみ破裂する
ので、従来のもののように大惨事とならず、安全性が向
上する。(3) Even if a crack occurs, only the membrane part will rupture, so it will not cause a catastrophe unlike conventional ones, and safety will be improved.
第１図は従来の焼結体をうめ込んだ電槽カバーを示す図
、第２図は本発明の一実施例による電槽カバーを示した
図、第３図は第２図のｍ−ｍ’線に沿った断面図、第４
図は別の実施例における電槽カバーの大部分に多孔性膜
を溶着した状態を示す断面図、第５図は目づまりによる
膜の破裂寸前の状態を示す断面図、第６図は目づまりに
よシ膜が破裂した後の状態を示す断面図、第７図および
第８図は多孔性膜の破裂前と破裂後の状態を示す上面図
である。
１・・・・・・電槽カバー、２・・・・・・電槽カバー
にうめ込んだ船端子、３・・・・・・液栓、４・・・・
・電槽カバーにうめ込んだ焼結体、５・−・・・・電槽
カバーに溶着した多孔性膜、６・・・・・・多孔性膜と
電槽カバ一本体との溶着部、７・・・・・・多孔性膜の
薄い部分、８・・・・・・多孔性膜が破裂した後の膜の
密着部、９・・・・・・厚い多孔性膜。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
第２図
第４図
第８図
第５図
第７図FIG. 1 is a diagram showing a conventional battery case cover in which a sintered body is embedded, FIG. 2 is a diagram showing a battery case cover according to an embodiment of the present invention, and FIG. 3 is a diagram showing m-m of FIG. 'Cross section along line 4th
The figure is a cross-sectional view showing a porous membrane welded to most of the battery case cover in another embodiment, Figure 5 is a cross-sectional view showing the membrane on the verge of bursting due to clogging, and Figure 6 is a cross-sectional view showing the membrane on the verge of bursting due to clogging. FIGS. 7 and 8 are top views showing the porous membrane before and after the rupture. 1... Battery container cover, 2... Ship terminal embedded in the battery container cover, 3... Liquid stopper, 4...
・Sintered body embedded in the battery case cover, 5... Porous membrane welded to the battery case cover, 6... Welded part between the porous membrane and the main body of the battery case cover, 7... Thin part of the porous membrane, 8... Close contact part of the membrane after the porous membrane has ruptured, 9... Thick porous membrane. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 4 Figure 8 Figure 5 Figure 7
Claims (2)
酸性、耐酸化性および撥水性を有する熱可塑性樹脂から
なシ平均孔径１〜５０μｍの微孔を有した多孔性膜を一
体化した鉛蓄電池用電槽カッく−。(1) A porous membrane made of a thermoplastic resin having acid resistance, oxidation resistance, and water repellency and having micropores with an average pore diameter of 1 to 50 μm is attached to a part of the battery case cup made of a thermoplastic resin. A cool integrated lead-acid battery case.
りも薄い部分を有している特許請求の範囲第１項記載の
鉛蓄電池用電槽カバー。(2) The battery case cover for a lead-acid battery according to claim 1, wherein the porous membrane has a thinner part near the center thereof than other parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57204043A JPS5994365A (en) | 1982-11-19 | 1982-11-19 | Battery jar cover for lead storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57204043A JPS5994365A (en) | 1982-11-19 | 1982-11-19 | Battery jar cover for lead storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5994365A true JPS5994365A (en) | 1984-05-31 |
Family
ID=16483803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57204043A Pending JPS5994365A (en) | 1982-11-19 | 1982-11-19 | Battery jar cover for lead storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5994365A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0654200U (en) * | 1992-12-26 | 1994-07-22 | 株式会社ユアサコーポレーション | Monoblock sealed lead acid battery |
| WO2011158822A1 (en) * | 2010-06-16 | 2011-12-22 | 株式会社朝日ラバー | Excess pressure release valve and excess pressure release unit |
-
1982
- 1982-11-19 JP JP57204043A patent/JPS5994365A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0654200U (en) * | 1992-12-26 | 1994-07-22 | 株式会社ユアサコーポレーション | Monoblock sealed lead acid battery |
| WO2011158822A1 (en) * | 2010-06-16 | 2011-12-22 | 株式会社朝日ラバー | Excess pressure release valve and excess pressure release unit |
| JP5043249B2 (en) * | 2010-06-16 | 2012-10-10 | 株式会社朝日ラバー | Overpressure release valve and overpressure release unit |
| JPWO2011158822A1 (en) * | 2010-06-16 | 2013-08-19 | 株式会社朝日ラバー | Overpressure release valve and overpressure release unit |
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