JPS60157156A - Exhaust valve for lead storage battery - Google Patents
Exhaust valve for lead storage batteryInfo
- Publication number
- JPS60157156A JPS60157156A JP59012551A JP1255184A JPS60157156A JP S60157156 A JPS60157156 A JP S60157156A JP 59012551 A JP59012551 A JP 59012551A JP 1255184 A JP1255184 A JP 1255184A JP S60157156 A JPS60157156 A JP S60157156A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- cut
- plate
- elastic body
- exhaust valve
- 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
- H01M50/317—Re-sealable arrangements
- H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
-
- 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
- H01M50/342—Non-re-sealable arrangements
-
- 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】
本発明は密閉形鉛蓄電池の排気弁の構造の改良に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in the structure of an exhaust valve for a sealed lead-acid battery.
正極板から発生した酸素ガスを負極板と反応、吸収させ
る負極吸収式密閉形電池では、外気すなわち空気を電池
内へ侵入させないことが必須条件となついる。これは空
気中の酸素ガスによって、負極板が酸化、放電するため
である。したがって電池内のガスを外部へ放出すると共
に、外気を内部へ侵入させない機能を持つ信頼性のある
排気弁が必要となる。In a negative electrode absorption type sealed battery in which oxygen gas generated from the positive electrode plate is reacted with and absorbed by the negative electrode plate, it is essential that outside air, that is, air, is not allowed to enter the battery. This is because the negative electrode plate is oxidized and discharged by oxygen gas in the air. Therefore, there is a need for a reliable exhaust valve that has the function of releasing the gas inside the battery to the outside and preventing outside air from entering the battery.
この種の排気弁としては従来から種々のものが提案され
実用化されてきた。最近になって密閉形電池には小形化
の要求が強くなり、小形でかつ信頼性のある排気弁の必
要性が高まっている。Various types of exhaust valves of this type have been proposed and put into practical use. Recently, there has been a strong demand for smaller sealed batteries, and the need for small and reliable exhaust valves has increased.
この要求にそった簡便な弁として、弾性体にピンホール
または切れ目を入れたものが提案されている。これは電
池内が加圧状態になると、弾性体が外部に膨張、変形し
てピンホールや切れ目が開口するものであるが、他方、
電池内が減圧状態になっても同じように弾性体が間口す
るので、外気が電池内へ侵入する欠点があった。A simple valve that meets this requirement has been proposed by having a pinhole or cut in an elastic body. This is because when the inside of the battery is pressurized, the elastic body expands and deforms to the outside, opening pinholes and cuts.
Even when the inside of the battery is in a reduced pressure state, the elastic body opens in the same way, so there is a drawback that outside air can enter the inside of the battery.
本発明は小形でかつ電池内が減圧状態となっても外気が
電池内に侵入しない排気弁を提供するものである。その
要旨は、ある限度を越えて膨張、変形したときに開口す
るピンホールまたは切れ目を有する板状弾性体を支持部
で気密に保持し、該板状弾性体の周囲を外側に対して内
側よりも膨張、変形しやすい構造とすることにある。The present invention provides an exhaust valve that is small in size and prevents outside air from entering the battery even if the interior of the battery is in a reduced pressure state. The gist of this method is to airtightly hold a plate-like elastic body with pinholes or cuts that open when it expands or deforms beyond a certain limit on a support, and to wrap the periphery of the plate-like elastic body from the inside to the outside. The aim is to create a structure that is easy to expand and deform.
以下、本発明をその一実施例を示す第１図によって説明
すると、１は合成ゴム、天然ゴムあるいは柔軟なプラス
チックなどからなる板状弾性体で、その形状は円形、四
角形、六角形などである。２は板状弾性体１のピンホー
ルであるが、＋、−などの切れ目でもよい。３は板状弾
性体１を支える下部枠体で、電池蓋への装着部４を有し
、これはねじ込み、嵌合圧着あるいは接着などでｖｔ着
するものである。５は板状弾性体１を押える上部枠体で
、下部枠体３とは符号６で示す部分によって一体化され
ている。３′は下部枠体３の開口部で、電池内の空間に
連なっており、電池内のガスの初出経路である。５′は
上部枠体５の間口部で、柔軟な板状弾性体１が外側へ膨
張、変形し得る空間であり、ピンホールや切れ口２から
排出された電池内ガスの経路ともなっている。下部枠体
３の開口部３′は上部枠体５の開口部５′よりも小さく
、柔軟な板状弾性体１が電池内側へ変形するのが難しく
なっている。Hereinafter, the present invention will be explained with reference to FIG. 1 showing one embodiment thereof. Reference numeral 1 denotes a plate-shaped elastic body made of synthetic rubber, natural rubber, flexible plastic, etc., and the shape thereof is circular, square, hexagonal, etc. . 2 is a pinhole in the plate-like elastic body 1, but it may also be a + or - cut. Reference numeral 3 denotes a lower frame body supporting the plate-like elastic body 1, and has a mounting portion 4 for attaching to the battery cover, which is attached by screwing, fitting, pressure bonding, adhesion, or the like. Reference numeral 5 denotes an upper frame body that presses down the plate-shaped elastic body 1, and is integrated with the lower frame body 3 through a portion indicated by the reference numeral 6. 3' is an opening in the lower frame 3, which is connected to the space inside the battery, and is the initial path for the gas inside the battery. Reference numeral 5' denotes a frontage of the upper frame 5, which is a space in which the flexible plate-shaped elastic body 1 can expand and deform outward, and also serves as a path for gas inside the battery discharged from the pinholes and cuts 2. The opening 3' of the lower frame 3 is smaller than the opening 5' of the upper frame 5, making it difficult for the flexible elastic plate 1 to deform into the battery.
本発明になる排気弁は以上のような構造であるから゛、
電池内の圧力が高くなったときには、柔軟な板状弾性体
１が外側へ膨張、変形してピンホールあるいは切れ口２
が開口して内部のガスを排出する。しかし電池内が減圧
となっても下部枠体３の開口部３′が小さいために、柔
軟な板状弾性体１はほとんど変形せず、したがってピン
ホールあるいは切れ口２は開口しないので、外気が電池
内へ侵入することを防ぐ。また間口部３′の大きさや形
状を適当に選択することにより、電池内の圧力が極めて
小さくなったときにはピンホールあるいは切れ口２が間
口して、その減圧状態を緩和して電槽の破損を防止する
ことができる。Since the exhaust valve according to the present invention has the structure as described above,
When the pressure inside the battery increases, the flexible plate-like elastic body 1 expands and deforms outward, creating a pinhole or cut 2.
opens and discharges the gas inside. However, even if the pressure inside the battery is reduced, the opening 3' of the lower frame 3 is small, so the flexible plate-like elastic body 1 hardly deforms, and therefore the pinhole or cut 2 does not open, so the outside air Prevent it from entering the battery. In addition, by appropriately selecting the size and shape of the opening 3', when the pressure inside the battery becomes extremely low, a pinhole or cut 2 will open, which will alleviate the reduced pressure and prevent damage to the battery case. It can be prevented.
厚さ０，５ｎ＋ｍのブヂルゴムシートにピンホールを１
ケあけて板状弾性体１どし、下部枠体３の開口部３′を
直径２ｍｌｌ１の円形、上部枠体５の開口部５′を直径
４Ｉの円形とした排気弁について、内外の圧力差と出入
りするガス量との関係をめて第２図に示ず。なお、この
図では、負の圧力は内部が減圧、負のガス量は外部から
の内部への侵入を意味している。図から明らかなように
、内部が加圧状態になると、約０．２気圧で弁が作動す
るが、減圧になった場合には、約０．６気圧にならない
と外部のガスは内部へ侵入しない。One pinhole is made in a Butil rubber sheet with a thickness of 0.5n+m.
For an exhaust valve in which the plate-like elastic bodies 1 are opened, the opening 3' of the lower frame 3 is circular with a diameter of 2 ml1, and the opening 5' of the upper frame 5 is circular with a diameter of 4I, the pressure difference between the inside and outside is determined. The relationship between this and the amount of gas flowing in and out is not shown in Figure 2. In this figure, negative pressure means reduced pressure inside, and negative gas amount means intrusion into the inside from the outside. As is clear from the figure, when the inside is pressurized, the valve operates at about 0.2 atm, but when the pressure is reduced, the external gas has to reach about 0.6 atm before the outside gas enters the inside. do not.
第１図の本発明実施例においては、電池蓋への装着部を
有する下部枠体３で柔軟な板状弾性体１を支持するもの
を示したが、電池蓋の上面を利用して板状弾性体１を支
持させ、下部枠体３を省略してもよい。In the embodiment of the present invention shown in FIG. 1, the flexible plate-shaped elastic body 1 is supported by the lower frame 3 having a mounting part for the battery lid. The elastic body 1 may be supported and the lower frame body 3 may be omitted.
なお、電池内のガスは板状弾性体１のピンホールや切れ
目２を通してのみ移動することが重要であって、板状弾
性体１と下部枠体３または上部枠体５との間から電池内
のガスや外気が出入りしてはならない。It is important that the gas inside the battery moves only through the pinholes and cuts 2 in the elastic plate 1, and the gas inside the battery moves from between the elastic plate 1 and the lower frame 3 or the upper frame 5. No gas or outside air should be allowed to enter or exit.
柔軟な板状弾性体１が内部へ膨張、変形し難くするには
図示したように、枠体の開口部の面積について、下部枠
体のそれを上部枠体のそれよりも小さくすることのほか
に、板状弾性体１の下面にピンホールや切れ口２を閉塞
しないような格子状あるいは網状などの支持体を設けて
もよい。In order to make it difficult for the flexible plate-like elastic body 1 to expand and deform inward, as shown in the figure, the area of the opening of the frame is made smaller than that of the upper frame. In addition, a grid-like or net-like support may be provided on the lower surface of the plate-like elastic body 1 so as not to block the pinholes or the cuts 2.
以上述べたことから明らかなように本発明による排気弁
は、小形でかつ電池内が減圧状態となっても外気が電池
内に侵入せず、信頼性が高いなどのすぐれた利点を有す
るものである。As is clear from the above, the exhaust valve according to the present invention has excellent advantages such as being small, preventing outside air from entering the battery even when the battery is under reduced pressure, and being highly reliable. be.
第１図は本発明鉛蓄電池用排気弁の一実施例を示す要部
縦断面図、第２図は本発明鉛蓄電池用排気弁の内外の圧
力差と排出ガスｍとの関係を示す特性図である。
１・・・板状弾性体、２・・・ピンホールまたは切れ目
、３・・・下部枠体、３′・・・間口部、５・・・上部
枠体、５′・・・開口部FIG. 1 is a longitudinal cross-sectional view of a main part showing an embodiment of an exhaust valve for a lead-acid battery according to the present invention, and FIG. 2 is a characteristic diagram showing the relationship between the pressure difference between the inside and outside of the exhaust valve for a lead-acid battery according to the present invention and the exhaust gas m. It is. DESCRIPTION OF SYMBOLS 1... Plate-shaped elastic body, 2... Pinhole or cut, 3... Lower frame body, 3'... Frontage part, 5... Upper frame body, 5'... Opening part
Claims (1)
ピンホールまたは切れ目を有する板状弾性体の周囲を支
持部で気密に保持し、該板状弾性体を外側に対して内側
よりも膨張、変形しやすい構造どした鉛蓄電池用排気弁
。 〈２）板状弾性体が膨張、変形しうる外側間口部を内側
開口部よりも広くした支持部を有する特許請求の範囲第
（１）項に記載の鉛蓄電池用排気弁。(1) A supporting part is used to airtightly hold the periphery of a plate-shaped elastic body that has pinholes or cuts that open when expanded or deformed beyond a certain limit, and the plate-shaped elastic body is held on the outside more than on the inside. Exhaust valve for lead-acid batteries with a structure that easily expands and deforms. (2) The exhaust valve for a lead-acid battery according to claim (1), which has a support portion in which an outer opening in which the plate-like elastic body can expand and deform is wider than an inner opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59012551A JPS60157156A (en) | 1984-01-25 | 1984-01-25 | Exhaust valve for lead storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59012551A JPS60157156A (en) | 1984-01-25 | 1984-01-25 | Exhaust valve for lead storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60157156A true JPS60157156A (en) | 1985-08-17 |
Family
ID=11808463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59012551A Pending JPS60157156A (en) | 1984-01-25 | 1984-01-25 | Exhaust valve for lead storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60157156A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008111356A1 (en) * | 2007-03-09 | 2008-09-18 | Asahi Rubber Inc. | Excessive pressure relief valve, and relief valve unit having the relief valve |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5821957B2 (en) * | 1978-04-01 | 1983-05-04 | 川崎製鉄株式会社 | Surface oil for protection of surface-treated steel sheets |
-
1984
- 1984-01-25 JP JP59012551A patent/JPS60157156A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5821957B2 (en) * | 1978-04-01 | 1983-05-04 | 川崎製鉄株式会社 | Surface oil for protection of surface-treated steel sheets |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008111356A1 (en) * | 2007-03-09 | 2008-09-18 | Asahi Rubber Inc. | Excessive pressure relief valve, and relief valve unit having the relief valve |
| JPWO2008111356A1 (en) * | 2007-03-09 | 2010-06-24 | 株式会社朝日ラバー | Overpressure release valve and release valve unit having the same |
| JP5111490B2 (en) * | 2007-03-09 | 2013-01-09 | 株式会社朝日ラバー | Overpressure release valve and release valve unit having the same |
| US8443840B2 (en) | 2007-03-09 | 2013-05-21 | Asahi Rubber Inc. | Excessive pressure release valve and release valve unit having the release valve |
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