JPS63310554A - Sealed lead-acid battery - Google Patents
Sealed lead-acid batteryInfo
- Publication number
- JPS63310554A JPS63310554A JP62147615A JP14761587A JPS63310554A JP S63310554 A JPS63310554 A JP S63310554A JP 62147615 A JP62147615 A JP 62147615A JP 14761587 A JP14761587 A JP 14761587A JP S63310554 A JPS63310554 A JP S63310554A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- rubber plate
- battery
- vent
- exhaust port
- 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
- 239000002253 acid Substances 0.000 title claims description 18
- 229920001971 elastomer Polymers 0.000 claims abstract description 30
- 230000006866 deterioration Effects 0.000 abstract description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 abstract 1
- 230000007774 longterm Effects 0.000 abstract 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 6
- 229910001882 dioxygen Inorganic materials 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/317—Re-sealable arrangements
- H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
-
- 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)
- 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、密閉形鉛蓄電池の安全弁に関するものである
。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a safety valve for a sealed lead-acid battery.
従来の技術
近年、密閉形鉛蓄電池は、ボ、−タプル電源をはじめコ
ンピュータのバックアップ電源などとして需要が拡大し
つつある。このような密閉形鉛蓄電池は、充電中に水の
電気分解により正極板から発生した酸素ガスを負極活物
質である海、１８状鉛と反応させて回収するとともに負
極板を部分的に未充電状ａｖｃよることにより、負極板
からの水素ガス発生がおこらない機構を備えているので
、通常は電池外部にガスが散逸することはない。しかし
ながら、大電流で過充電した場合には、負極板での酸素
ガス吸収能力よりも、正極板で発生する酸素ガス発生量
が多いうえに負極板からも水素ガスが発生するため、完
全密閉すると電池内部の圧力がかなり高くなる。そのた
め、電池内圧が上昇すると開弁し、内部ガスを電池外部
へ放出するような安全弁が設けられている。まｔ、密閉
形濱電池においては、自然放置すると負極板がさらに酸
素ガスを吸収するため減圧状態となる。この場合、電池
内の気密性が保持されていないと、空気中に存在する酸
素ガスを吸込み、負極板が急激に劣化してしまう几め、
安全弁は外部からの酸素の侵入を遮断し、気密が保たれ
るようになっている。BACKGROUND OF THE INVENTION In recent years, the demand for sealed lead-acid batteries has been increasing as a backup power source for computers as well as a tuple power source. Such a sealed lead-acid battery recovers oxygen gas generated from the positive electrode plate by electrolysis of water during charging by reacting with the negative electrode active material, 18-type lead, and also recovers the oxygen gas generated from the positive electrode plate when the negative electrode plate is partially uncharged. Since the battery is equipped with a mechanism that prevents hydrogen gas from being generated from the negative electrode plate due to the condition avc, normally gas does not dissipate to the outside of the battery. However, when overcharging with a large current, the amount of oxygen gas generated at the positive electrode plate is greater than the oxygen gas absorption capacity of the negative electrode plate, and hydrogen gas is also generated from the negative electrode plate, so if it is completely sealed, The pressure inside the battery becomes quite high. Therefore, a safety valve is provided that opens when the internal pressure of the battery increases and releases the internal gas to the outside of the battery. In addition, in a sealed type battery, if left alone, the negative electrode plate further absorbs oxygen gas, resulting in a reduced pressure state. In this case, if the airtightness inside the battery is not maintained, oxygen gas present in the air will be sucked in, causing rapid deterioration of the negative electrode plate.
The safety valve blocks oxygen from entering from the outside and maintains airtightness.
以下に一般的な密閉形鉛蓄電池について説明する。第４
図は一般的な密閉形鉛蓄電池の構造を示すものであり、
この密閉形鉛蓄電池は、電槽１１と、ふ７ｔ１２と、端
子１３と、さらに正極板１４、負極板１５およびセパレ
ータ１６よりなる極板群１７とから構成されている。ふ
た１２には、安全弁１８が設けられている。A typical sealed lead-acid battery will be explained below. Fourth
The figure shows the structure of a typical sealed lead-acid battery.
This sealed lead-acid battery includes a battery case 11, a lid 7t12, a terminal 13, and a plate group 17 consisting of a positive plate 14, a negative plate 15, and a separator 16. A safety valve 18 is provided on the lid 12.
次に、従来の密閉形鉛蓄電池の安全弁について説明する
。第２図は、従来の密閉形鉛蓄電池の安全弁の構造の一
例を示すものであり、電槽上部にある排気口１９は上部
に排気口径より、広い段部１９ａが形成され、この段部
１９ａの底面に排気口１９を覆うゴム板２０が設置され
、その上にクッション材２１をのせ、押え板２２で押え
つけることによりゴム板２０は固定されている。Next, a safety valve for a conventional sealed lead-acid battery will be explained. FIG. 2 shows an example of the structure of a conventional safety valve for a sealed lead-acid battery.The exhaust port 19 at the top of the battery case has a stepped portion 19a wider than the exhaust port diameter at the top. A rubber plate 20 covering the exhaust port 19 is installed on the bottom surface of the rubber plate 20, a cushion material 21 is placed on top of the rubber plate 20, and the rubber plate 20 is fixed by being pressed down with a presser plate 22.
発明が解決しようとする問題点
しかしながら、上記の従来の構成では、ゴム板２０はク
ッション材２１および押え板２２による圧力だけでおさ
えられているために、減圧が強くなるとゴム板２０が排
気口１９の中に吸い込まれ几り、振動・衝撃が強いとゴ
ム板２０のずれが生じるなどの危険性があり、電池内部
の気密が保九れないという欠点を有していた。Problems to be Solved by the Invention However, in the conventional configuration described above, the rubber plate 20 is held down only by pressure from the cushioning material 21 and the presser plate 22, and therefore, when the reduced pressure becomes strong, the rubber plate 20 closes to the exhaust port 19. If the rubber plate 20 is sucked into the battery and exposed to strong vibrations or shocks, there is a risk that the rubber plate 20 may become displaced, and the airtightness inside the battery cannot be maintained.
本発明は、上記従来の間組点を解決するもので、簡単な
構成でゴム板を確実に固定することができ、しかもクッ
ションなどを使用しなくてよい密閉形鉛蓄電池を提供す
ることを目的とする。The present invention solves the above-mentioned conventional interlocking point, and aims to provide a sealed lead-acid battery that can securely fix a rubber plate with a simple structure and does not require the use of a cushion or the like. do.
問題点を解決するｔめの手段
上記問題点を解決するため、本発明の密閉形鉛蓄電池の
安全弁は、押え板に突起部を設け、排気口を覆うように
のせたゴム板を前記押え板の突起で部分的に押え、ゴム
板を排気口周囲に固定するようにしたものである。Third Means for Solving the Problems In order to solve the above-mentioned problems, the safety valve for a sealed lead-acid battery of the present invention is provided with a protrusion on the holding plate, and a rubber plate placed so as to cover the exhaust port is attached to the holding plate. The rubber plate is fixed around the exhaust port by partially holding it down with the protrusion.
作用
上記構成によれば、押え板の突起によって、排気口を覆
うようにのせ九ゴム板は排気口周囲で固定されるので、
強い減圧によってゴム板が排気口の′中に吸いこまれる
ことがなく、まｔ振動・衝撃によってもゴム板がずれる
こともないため、電池内部の気密を−めて安定して保つ
ことができる。Effect: According to the above structure, the rubber plate is fixed around the exhaust port by the protrusion of the holding plate so as to cover the exhaust port.
The rubber plate is not sucked into the exhaust port due to strong vacuum, and the rubber plate is not displaced due to vibration or impact, so the airtightness inside the battery can be maintained stably.
実施例
以下本発明の一実施例について図面に基づいて説明する
。EXAMPLE Hereinafter, an example of the present invention will be described based on the drawings.
第１図は、本発明の一実施例における密閉形鉛蓄電池の
安全弁の構造断面図である。第１図ｒｃおいて、１は排
気口であり、この排気口ｌは上部に排気口径より広い段
部１ａが形成されており、この段部１ａ上には耐硫酸性
に優れかつ長期間使用可能である、友とえばクロロプレ
ンゴムからなる厚さ０．５ｍのゴム板２が排気口１を覆
うように設置されている。ま九、このゴム板２の上方に
配設され几押え板３には下方へ延びて先端が曲面となっ
ている直径１ｍｇの突起部３ａが複数本適当間隔をおい
て全体として環状を呈するよう設けられており、この突
起部３ａｖｃよりゴム板２は突起部先端が０．２ｎくい
こむ程変に押し込まれて、排気口１の周囲で固定される
。FIG. 1 is a structural sectional view of a safety valve for a sealed lead-acid battery according to an embodiment of the present invention. In Fig. 1 rc, 1 is an exhaust port, and this exhaust port l has a stepped portion 1a wider than the exhaust port diameter formed at the top. A 0.5 m thick rubber plate 2 made of, for example, chloroprene rubber is installed to cover the exhaust port 1. 9. The holding plate 3 disposed above the rubber plate 2 has a plurality of protrusions 3a having a diameter of 1 mg extending downward and having a curved tip at appropriate intervals so as to form an annular shape as a whole. The rubber plate 2 is pushed into the protrusion 3avc so that the tip of the protrusion digs in by 0.2n, and is fixed around the exhaust port 1.
以上の構成において、第１図に示す本発明の安全弁構造
のものと、第２図に示す従来の安全弁構造のもの、およ
び第２図におけるクッション材を除去しゴム板をはめ次
だけの第３図に示す比較例の安全弁構造のものとを各５
個ずつ準備し、振幅４ ［、１０００ｒｐ、 Ｘ 、
Ｙ 、 Ｚ各軸方向へ１時間の条件で振動試験を行い、
４０℃で２週間放置後、容量、つ電池は、容量、気密性
ともに問題はなかった。In the above configurations, the safety valve structure of the present invention shown in FIG. 1, the conventional safety valve structure shown in FIG. 2, and the third safety valve structure shown in FIG. 5 each of the safety valve structure of the comparative example shown in the figure.
Prepare one by one, with amplitude 4 [, 1000 rp,
A vibration test was conducted for one hour in each direction of the Y and Z axes,
After being left at 40° C. for two weeks, the battery had no problems in terms of capacity or airtightness.
しかしながら、第２図、ｔ＄３図に示す従来の安全弁の
構造をもつ電池は、気密不良、容量低下のものがみられ
几。特に、第３図に示す従来の安全弁をもつ電池はゴム
板のずれが激しかった。However, batteries with the conventional safety valve structure shown in Figures 2 and 3 suffer from poor airtightness and reduced capacity. In particular, in the battery with the conventional safety valve shown in FIG. 3, the rubber plates were subject to severe displacement.
以上のように本実施例の安全弁によれば、押え板３に設
けられた突起部３ａが段部１ａの底面にゴム板２を確冥
に固定するため、電池内部の気密を極めて安定して保つ
ことができる。また、従来の安全弁のようにクッション
を使用する必要もない。As described above, according to the safety valve of this embodiment, the protrusion 3a provided on the presser plate 3 securely fixes the rubber plate 2 to the bottom surface of the stepped portion 1a, so that the airtightness inside the battery is extremely stable. can be kept. Additionally, there is no need to use a cushion as with conventional safety valves.
発明の効果
以上のように本発明によれば、押え板に、ゴム板を部分
的に押さえるための突起を設けることにより、排気口の
開口部を覆うゴム板を排気口周囲で強く固定することが
できるので、電池内部の気密が安定して保たれて、容量
低下も防止され、さらに従来の安全弁に用い几クッショ
ン材が不要となり、コスト的にも安価になる。Effects of the Invention As described above, according to the present invention, the rubber plate that covers the opening of the exhaust port can be firmly fixed around the exhaust port by providing the holding plate with projections for partially pressing the rubber plate. As a result, the airtightness inside the battery is stably maintained, and a decrease in capacity is prevented.Furthermore, the conventional safety valve does not require a cushioning material, resulting in lower costs.
第１図は本発明の一実施例を示す密閉形鉛蓄電池の安全
弁の断面図、第２図は従来の密閉形鉛蓄電池の安全弁の
断面図、第３図は比較例として用いた従来の密閉形鉛蓄
電池の安全弁の断面図、第４図は一般的な密閉形鉛蓄電
池の構造図である。
１・・・排気口、ｌａ・・・段部、２・・・ゴム板、３
・・・押え板、３ａ・・・突起部。−
代地大 森 本 義 弘第１図
／−ｍ−排気口
第２図
第３図Fig. 1 is a sectional view of a safety valve of a sealed lead-acid battery showing an embodiment of the present invention, Fig. 2 is a sectional view of a safety valve of a conventional sealed lead-acid battery, and Fig. 3 is a sectional view of a safety valve of a conventional sealed lead-acid battery used as a comparative example. A cross-sectional view of a safety valve of a lead-acid battery, and FIG. 4 is a structural diagram of a general sealed lead-acid battery. 1...Exhaust port, la...Step, 2...Rubber plate, 3
... Pressing plate, 3a... Protrusion. - Yoshihiro Morimoto, Daiji University Figure 1/-m-Exhaust port Figure 2 Figure 3
Claims (1)
収納した電槽に排気口を備え、この排気口を覆うように
ゴム板を設置するとともにこのゴム板を押え板に設けた
突起により排気口周囲で部分的に押圧固定した密閉形鉛
蓄電池。1. A battery case containing a group of electrode plates consisting of a positive electrode plate, a negative electrode plate, and a separator is equipped with an exhaust port, and a rubber plate is installed to cover this exhaust port, and the rubber plate is exhausted by a protrusion provided on a holding plate. A sealed lead-acid battery that is partially pressed and fixed around the mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62147615A JPS63310554A (en) | 1987-06-12 | 1987-06-12 | Sealed lead-acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62147615A JPS63310554A (en) | 1987-06-12 | 1987-06-12 | Sealed lead-acid battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63310554A true JPS63310554A (en) | 1988-12-19 |
Family
ID=15434328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62147615A Pending JPS63310554A (en) | 1987-06-12 | 1987-06-12 | Sealed lead-acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63310554A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002304976A (en) * | 2001-04-04 | 2002-10-18 | Matsushita Electric Ind Co Ltd | Control valve type lead-acid battery and method for manufacturing the same |
| JP2006108185A (en) * | 2004-09-30 | 2006-04-20 | Nippon Chemicon Corp | Electrolytic capacitor |
| JP2010232675A (en) * | 2010-06-14 | 2010-10-14 | Nippon Chemicon Corp | Electrolytic capacitor |
-
1987
- 1987-06-12 JP JP62147615A patent/JPS63310554A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002304976A (en) * | 2001-04-04 | 2002-10-18 | Matsushita Electric Ind Co Ltd | Control valve type lead-acid battery and method for manufacturing the same |
| JP2006108185A (en) * | 2004-09-30 | 2006-04-20 | Nippon Chemicon Corp | Electrolytic capacitor |
| JP2010232675A (en) * | 2010-06-14 | 2010-10-14 | Nippon Chemicon Corp | Electrolytic capacitor |
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